If you don't like techno, you don't have to listen to it. Everyone's got their different musical tastes, and techno just isn't for you.
You don't have the right to denounce just because you dislike it. Sure, there's a lot of shit techno out there, but there's also a lot of good stuff.
As it will be said a million times: Your opinion.
Anyways, I don't see why you techno would get you so aggravated. It's not shoved in your face like rap or emo (and because of that they are more commonly ranted about).
ALSO - You hate techno and this is your favorite audio submission? I don't see any musical or comedic value to that piece of audio.