Pretty much the only people who would see tax increases would be people making 200k or more per year, and at MOST they'd get a tax hike of about six to seven percent. (from 32-33ish to about 39) That doesn't take into account the tax increases he's proposing for capital gains, which would go up from about 12.5 to somewhere in the lower 20s if I'm not mistaken.
Basically, YOU aren't getting your taxes hiked. You'll probably get a modest cut. Conservatives have a pathological fear of taxes. Well, that and two dudes kissing, despite the fact that a lot of them are, in fact, gay. Weird crowd.