Kent Ninomiya pokemon

Kent Ninomiya
Can someone explain Pokemon to me? My son is obsessed with it and has my daughter singing its praises as well. It's Japanese animation on steroids. There seem to be an infinite number of characters fighting for no good reason. Humans "train" these mutated warriors but don't "own" them because that would be wrong. The cartoon stems from the card game that doesn't make much sense either. My kids collect and trade the cards with their friends but as far as I can tell they don't actually play the game. They just exchange the cards and watch the cartoon. It's violent and I would much rather my children watch Dora or something at least pretending to be educational, but just try changing the channel at my house. They would scream bloody murder and suffer trauma so deep I would have them in therapy past college. So I just shrug my shoulders and let them watch. It keeps them happy and busy so I get to write this on my blog. Does that make me a bad parent?