Without getting into the fact that, yes, worldwide I'm certainly not "poor"...
Don't you see how what you say is a problem? Most of the ways you listed where you are "helping" are involuntary and inefficient. When I go out and help, I'm actually putting food directly in the hands of the people who are hungry. I won't say the org. I work for is perfect, but there is a far closer to 1-1 yield on the fruits of my effort. Because it's personal, it also makes me feel good. I think I'm less inclined to think, "well, gee, there's some welfare queen living off of my dole". There's accountability. If the welfare system screws up, there's a chain of unelected bureaucrats that are only held accountable to narcissistic fools who are elected based on unrelated wedge issues like abortion. If my volunteer organization screws up, then the donors stop giving and find other places for their money to help (without sounding too capitalistic about it, there are indeed competing orgs that could fill its shoes on a dime).
You're trying to vote to make the burden on other people greater, which will create a bigger bureaucracy, which will in all likelihood be more inefficient. Why not, instead of taxing people more, work harder to create a society that just does more efficient things to help? It's hard, because getting people to be BETTER people is not easy. But it's way worth it.
Yeah, there are problems in our country, like a kleptocratic upper class, but you don't think there might be better solutions that actually address that problem than the bludgeoney "tax 'em more!!1" - which, ultimately is based in the ugly emotion of envy?