The Government - I hate the nanny state that the US government has become. As a libertarian, I just want them small and out of the way. I want a government that fears its citizens, not the other way around. I want politics not to be a career, but a public service. I want back-scratching fat cats out and every-men in.
Organized Religion - As a person of reason, I find it frustrating (to say the least) that we have Jews and Arabs blowing each other up in the streets because they believe the wrong things. I think it's abhorring that one religion--Christianity--is at the forefront of our government at all times. It frightens me that people who do not believe in evolution (I am aware that many theists do) running our cities, states, and nation.
Prohibition - From the position of a pot smoker, and a concerned American who wants his right to privacy respected, I loathe prohibitionist laws and the violence they create. Moreover, I also hate the bias and fear it creates about drug use, and I hate that an entire multi-billion dollar industry has sprung up around denying people jobs just for smoking pot.
Technology - I love the internet. I think it's the single greatest achievement in human history. But I don't like the disposable culture in which we live. You buy a new printer twice a year, a new iPod every couple of years, a new computer every three or four years...and it's never because you want to upgrade...it's because your old device stopped working just minutes after the warranty expired.
Kids - I hate this new generation of kids. They're rude, they have no appreciation for the world around them, and social networking sites give them all the attention they could ever want to indulge all of their silly emo bitching and slutty MySpace-angled camera shots. That said, I'm also aware that every generation is inevitably outrun by the next crop of people who tend to grow up smarter, healthier, and more peaceful. It's sad that at 22 I'm already a teenager-hating old man, but I am.