It’s a common justification, but “if I don’t do [bad thing], then someone else will do [bad thing] instead, but worse” feels like an excuse we’ve heard before.
After all, there’s systems you could put in place to handle scalpers.
But Ticketmaster et al actually have them baked into the business plan, so have no intention of making change.
It’s the same reason there’s no politicians trying to bring rents down. They’re all bloody landlords.