Saying you shouldn't run an exit node at home is accepting that Tor has mainly fraudulent uses. More people need to run it from home so it becomes accepted as a normal Internet usecase.

It doesn't have to be even close to "mainly fraudulent uses". If just 0.01% of users use it for illegal stuff that will get your home network connection shut down, and an exit node sees a thousand different users a month, then it would be unwise to host an exit node at home.