Chat/Perma Ban

This isn't like most of the posts in this board complaining about being permabanned and saying the system sucks. I was just curious if other people think this would make more sense as well.

First off, assuming an account is perma banned because of being toxic, I personally believe that isn't all that efficient of a punishment. What I see most of the time is that when players are perma banned, they create another account and are just as toxic as ever. The ban doesn't change anything, just makes them restart. Wouldn't it be much more efficient to perma chat ban them? since they won't want to make a new account due to the money they spent on the account, thus actually taking him out of the playerbase instead of just basically transferring him to another account.