I don’t know how qualified I am to answer the OP, because while I am vegan, I do it almost completely to avoid the downright yucky effects of animal farming on the environment. Animal exploitation is a factor in my decision, but by far not the largest.
Like PLDennsion said earlier, there’s a whole lot of potential for serious inner conflict when one makes such a huge life change as veganism (or even vegetarianism). Does one continue to wear leather? Visit Zoos? Have a pet? Support potentially life saving reasearch even though it involves the deaths of large numbers of animals? Some of these are easier to answer than others.
The last has been the most difficult to answer for me. I heart science, as is evidenced my my devotion to Cecil and all he surveys. And I just can’t seem to get a straight answer from anybody on the issue of animal experimentation. PETA says that in no case have animals ever really been needed for any research ever. Sounds sorta dubious, IMHO. The other side seems equally biased. Since I haven’t had a chance to research the issue on my own, my jury’s still out on this one.
In many cases, the examples in the OP are just special cases of the above. There’s a big difference between the harm an animal would endure awaiting death in a slaughterhouse and any pain from leading a blind person around in exchange for room and board, and the benefit to a person who gets to eat a steak vs. the benefit to a blind person who is no longer homebound also needs to be taken into account. In a similar fashion, picking out a dog from the humane society is amazingly different from grabbing a puppy from the store in the mall who gets their animals from puppy mills.
I guess what I’m trying to say is that even vegans don’t have it all figured out. I’m wary of those who claim to. What’s really important to me and my vegan friends is that, on the issues that one does believe in, one supports ones opinions (hope I’m not sounding too pretentious here with all this ‘one’ business, but using ‘they’ all the time just bothers me). If someone has different (supportable) opinions, it doesn’t make her a hypocrite at all. For a lot of people, veganism or otherwise striving for a “cruelty free life” is a progression. It’s very hard to do it all at once, and taking this one step at a time is accepted in the vegan community.
Meaning–one can be a committed vegan without believing that any of the acts on the list in the OP are exploitation. On my way to trying to be the very bestest human I can be, I’ll keep taking more situations into account in my daily life. But, and this is among vegans, as I said, nobody expects me to be completely aligned with PETA or any other ‘authority’ all the time.
And to everybody going veggie for the first time…it’s probably best to avoid fake meat entirely. It’s not gonna taste like a steak, it’s never gonna taste like a steak. If you close your eyes and take a big bite of Tofurkey (tofu turkey, how clever), it ain’t gonna taste like thanksgiving. My advice is to get a veggie cookbook, and start cooking non-meat based things, that way you’ll have all these neato new tastes instead of thinking about how this soy crap doesn’t live up to the real thing.