Communism as a concept is a brilliant thing. The problem is that in the past it never worked the way it was intended, but managed to cause a lot of harm.
The problem is that the 14 year old white girl here still thinks with all her heart that countries like China are communist and in generall the perfect place to be, which is just not true.
This is a silly argument because actual real world communism has to be compared to other real world alternative we have available which is capitalism. By every measure capitalism has created far more horrors than communism has.