Yeah, of course you are. Guessing you probably are glad there are schools for your children, too. Probably glad there are roads to drive on, mail that's delivered, soldiers to defend you, ammo they can use to do it, etc., etc.
You're happy that you have a pretty darn good life - much of which has been afforded you by taxes. Whether you realize that, or think that, or not. But bitching about it, is easier, and as you said, makes you happy.