Why do so many people hate SNSD/Girls' Generation so much?

So I was bored and I looked up TVXQ parodies(They are my favorite band) and found a crap load of Anti-SNSD parodies. Seriously, i don't know why there are so many of them. I'm not a Sone(I'm a Cassie), but i don't think it's fair that so many people take the time to make such hurtful videos about them.

If you could answer this question, i would greatly appreciate it. Oh and no bashing. Seriously. I don't need trolls spamming this question with ridiculous answers. Kay, thanks. :)