You can support who you like. Your well within your rights of course.
I just laughed at some of the comments here saying that Barca deserve respect and Arsenal don't.
If anything our young lads should be applauded for their never say die attitude, they were played off the park completely but we didn't give up, we continued playing our game, we continued attacking them with big numbers, and eventually with a little luck and a few Barca blunders we got two late goals. With all Barca's experience, their superior squad, our injuries and everything. We played until the final whistle.
Sometimes you can't help it that you have a mediocre squad like in our case, we were always going to be outclassed, no surprises there. But the attitude and spirit was more admirable than Barca's choking and inefficiency, thats for sure.