I can already build a list of a few ideas some would say why children and teenagers love destruction or rude/hurtful behavior:
Bad upbringing, excessive energy, abuse, boredom, "just a phase."
But is it really always one of those things? Sometimes even adults partake in childish behavior like this to wind down stress. Could it be the grand system, assortment of barriers in life and the government?
Where I live, it's rather normal to dress in all black as a growing teen and partake in vandalism. Spray-painting buildings, tagging, finding things to destroy and have a good laugh, peer pressuring others, et cetera. (Note: I don't do these things myself besides sometimes breaking ice or smashing composting food at home in our yard which seems to be mindlessly entertaining. I just can't put my finger onto why that is.)
I'm also questioning the neural pathway of what leads to a person thinking it's hilarious to watch things breakdown. Maybe it's just human nature to have fun destroying things as dogs and cats enjoy killing smaller animals?