Personally, I am a HUGE fan of the show. The characters strike me as funny, lovable, and frankly, extremely silly. It really depends on what kind of humor and style you like. Some like it, some don't; its fine. But if you don't enjoy it, please don't ruin my experience or that of the other fans.
And about the whole racism thing, consider this: I myself am a muslim who wears a headscarf. Try going to an airport like that and you will get a true taste of racism.
But when Germany made a terrorist joke about Egypt in Episode 31, did you know what I did? I laughed. I laughed because it was funny, and the whole nature of the show isn't meant to be taken that seriously. Heck, the producers don't even take it seriously xd
May I just add that I love the fandom to bits? 4laugh They are dedicated, funny, and truly awesome! There are always going to be a few who try to ruin it for everyone, but that doesn't mean that you should fall into their ploy xp
Again, I personally heart it, but its up to you really if you like it or not, and I will respect you either way!