Wow, Kid. I have to say I'm somewhat confused by your post. Could it be that you just don't like them, therefore, you will never agree with anything they do?I don't even recall specifically right now seeing them being spat on. From their edit, the only negative - if one really wants to call it negative - they have is that their singing could just be downright annoying.
Yep, they've appeared somewhat lost and clueless at certain times, but they haven't completely screwed up. They aren't rude. They seem to appreciate their surroundings. They get along. They're nice to others. What would getting angry and confrontation really get them? And what if they had? Would you then be criticizing them for being disrespectful?
Maybe they were taught to turn the other cheek. In a world where there is so much hatred, I find it refreshing not to make a bad situation worse.
Samboobree, brought to life by Arkie