Now, my opinion on the matter is that the major charitable initiatives that Christian institutions in my area are out to tackle are probably not societal problems I would blame on any religious group.
For example a big thing around here is canned food drives. Considering the vast range in economic and fiscal philosophies amongst people within any of the major Christian sects I just don’t think you can blame Christianity for people needing food charity.
Homelessness is mostly a factor of mental illness and serious substance abuse in the United States. I can’t really blame the Christians for those, either. Mental illness is present in all societies, and substance abuse as well. The poor treatment of people who are mentally ill and people with serious substance abuse problems isn’t really something I can link to any major religious group’s position on the issues.
In the 60s and 70s there was a revolution in the treatment of the mentally ill. It was seen by both people on the left and the right that for most people, community based mental health services were preferable to institutionalization. People on the left and people who were advocates of the mentally ill in general felt this way because of the draconian nature of psychiatric hospitals and it was felt by many that while some people did need that intensive level of care, most people did not. People on the right saw a way to stop spending massive amounts of money on state mental hospitals, which are extremely expensive to operate.
What actually happened is we closed a lot of state psychiatric hospitals, and have been slow to react to changes in our population. While we had a legitimate ability to close some of those hospitals as we moved to community mental health as a focus, there was still and is still a certain group of mentally ill that need to be in a psychiatric hospital. Unfortunately as the U.S. population has increased States have not reopened or built new psychiatric hospitals to keep up with the base line level of growth in the population of the mentally ill that anyone would expect to see just because of basic demographics. So even though we moved a huge portion of people out into the community, we still have massive overcrowding in psychiatric hospitals because we closed more than we should have and we haven’t built new ones to keep up with population growth.
The persons who needed in a psychiatric hospital but could not get in, instead end up in psych wards in other hospitals (which are not really ideal) or they end up on the street. Most community mental health centers will not take people that are supposed to be in a psychiatric hospital because they are not equipped to deal with that in a dormitory style setting found in a residential group home. So that’s one source of the homeless.
As part of the transition to community mental health, it became much more difficult to have someone committed to a psychiatric hospital at all, or for that matter forcibly placed into any form of treatment. Some portion of the mentally ill population will never voluntarily undergo treatment, and will live in the streets unless we have a system in place to essentially force them into treatment. So that’s another source of the homeless.
On the community mental health side of it, most CMH facilities are operated by quasi-governmental private corporations, that usually have a pseudo-monopoly over a given region of a state. Most of the operating expenses of these companies are covered by State governments (who are acting as a funnel for Federal funds and also kicking in some portion of State money as well.) Unfortunately the funding is always dicey, and because of that CMH facilities are chronically overbooked, understaffed and underfunded, it is difficult to get more funding to open more residential group homes and even sometimes to fully staff existing ones, which results in fewer beds and worse treatment. So many homeless mentally ill who would be happy to live in a residential group home have trouble finding one, some of them might even be eligible for other forms of housing but unfortunately without the treatment aspects of a CMH group home they can’t really keep it together enough to make unsupervised housing “work” for them. So that is another source of the homeless.
Finally with substance abuse, it wasn’t until relatively recently that societal opinions have started to change, and it still has a ways to go. Many people feel that if you’re an alcoholic or a drug addict you should receive no help from the public at all, that you’ve chosen to destroy your life with drugs and you should be left on the streets to rot, essentially. In spite of that there are treatment facilities and shelters that house people with addiction problems. Most of them are just general homeless shelters that also offer some AA/NA meetings and may have a few counselors on staff. It is easier to fund a homeless shelter with a few addiction counselors than it is to fund a shelter or facility that specializes in treatment/housing of addicts. (That is because of politics.)
Finally, with most of the facilities that do exist for addicts there is a requirement that you not use or be under the effects of drugs/alcohol while at the facility. Many, many serious addicts will never agree to those criteria for very long, and either never bother trying or get kicked out of the facility when they show up at the front door plastered one too many times. A few states have started building facilities where addicts are housed and given a small stipend and permitted to drink essentially whenever they want. They are not required to undergo treatment whatsoever (they are called “wet houses”) the people running them essentially describe them as hospice level treatment for end-stage alcoholics who essentially have decided they will never get better and are happy to live in the wet house and drink until it kills them. I’m actually somewhat supportive of the wet house approach. I’ve seen many alcoholics in the homeless population who I think essentially cannot beat their addiction, it will kill them, and giving them a safe, warm place where they are allowed to drink and sleep you save the public huge amounts of money in emergency medical services, police services and et cetera. The wet houses I have read about house end stage alcoholics for about $18k a year, and I’ve heard that alcoholics living on the street sometimes cost up to $100,000 a year in services, so there is real savings and humanity in this approach, and I’d even like to see it extended to other drugs besides alcohol.