The government isn’t responsible for providing you ho-hos, but it’s not responsible with ensuring you don’t buy ho-hos, either.

Ensuring that the money that is spent does what it is supposed to do – provide sound nutrition for adults and growing kids so that they can be healthy and productive members of society. If the money is spent on frozen corn dogs and ho-hos, it doesn’t accomplish that.
What, precisely, is wrong with frozen corn dogs? I mean, aside from the fact that they aren’t terribly useful to somebody without a freezer and microwave. They’ve got protein and carbohydrates, don’t they?
Okay, they’re not a perfectly balanced sci-fi nutrition pill. But then, nothing is, and they could certainly be worse. Especially considering how quick and easy they are to prepare.

“Socioeconomic status plays a significant role in obesity. Low-income minority populations tend to experience obesity at higher rate and are more likely to be overweight.” From the first thing that popped up on google (http://www.obesityaction.org/educationaltools/factsandstats.php).
Banning food entirely would be the government overstepping its boundaries. I don’t care what you eat – that’s your choice. However, if I’m footing the bill to keep you healthy, that gives me some say in the matter.
That’s nuts? Why? It does happen. See the cite above for what socioeconomic group it is more likely to happen to.
Your cite doesn’t say why they’re fat. Maybe it’s because they can’t afford stairmasters. Or maybe it’s because they’re carb-loading on wheat germ because it’s cheap. (It’s certainly cheaper than potato chips.) Or maybe it’s because they’re sitting around drinking booze.
I still don’t believe that you have kids whose parents are pouring them bowls of ho-hos for breakfast. Based on your cite I’d guess television to be the culprit, myself.

It is about saving money only to the extent that unhealthy fat people are more likely to get sick and pass these costs onto society.
Again, I think this is a red herring. The existence of ho-hos is not the cause of the nations fat emidemic - for one thing, ho-hos and their ilk have been around forever.

Also, why do you keep choosing the most unappetizing thing you can find and acting as if the only alternative to a diet that includes junk food is eating wheat germ and uncooked brown rice out of a bucket or some crap like that?
Because you need a somewhat-stocked kitchen and time to cook to make tasty food from cheap ingredients. You’re dissing frozen corn dogs - what do you expect them to eat, pray tell? Would you accept Captain Crunch, or is that too sugary for you? Unsugared corn flakes, maybe? Dirt perhaps?

It’s not that. I’m also not so sure that eating a diet rich in junk food makes you measurably happier, although it does make you measurably fatter.
Funny, I’m still not worried about this. Especially since you can get fat on anything if you eat enough of it.

This is the part of your argument that I find most sound.
It’s pretty compelling, ain’t it? Especially over the “we’re suddenly worried about their weight” argument, which frankly pings loud and clear on my ‘BS’ meter.

Unhappy people turn to alcohol and to junk food; neither one is good for you.
Some people drown themselves in junk food, but if you think it belongs in the same sentence as those who drown themselves in alcohol, then your impression of junk food’s effect on people is severely skewed.