There's a very easy solution. Put the name of the owner on the ticket. Limit the number of tickets per person. Verify the identity before entering the premises. Allow the resale at face value via the organiser's platform. Allow to resell your ticket at face value to a specific person, for the case where the friend who bought the tickets six months ago is suddenly sick.
I don't know why this is being made to look like an insurmountable problem. We're talking about multi-billion dollar companies, organising billion dollar tours.
> If she sells all tickets at $10k each then maybe she'd clear the market, but she'd piss off a lot of fans
If I was conspiracy-minded, I'd say blaming "the scalpers" would be a very convenient way of dodging responsibilities while taking a cut.