Because they hate beauty in the hands of other people.

Ever notice why radical leftists want everything that functions properly and works normal banned? Ever wonder why whenever leftists run cities those cities turn into dangerous gang-ridden, crime infested slums and ghettos? It is their modus operandi. It is their policy to make things worse for average people. It is their ideology to fuck things up for you and your family. It's an ingrained mental sickness. That's why so many leftists end up killing themselves when they can't get their way in life.