No, I'd really rather not the government tell me I have to support someone on my service if I didn't want. Has fuck all to do with personal safety like fire exits.
Like someone else said, I wouldn't want to be forced to allow neonazis on my service so..
If you're so concerned, open your own payment platform and open source it or run it with no restrictions. No one is stopping you. Or tell them to accept checks through the mail, etc. Why is anyone entitled to a private company's platform? There are still other ways to be paid. Why must this one company support everyone?
Last I checked gab, gettr, parler, etc all existed. Maybe they suck and don't get traction because no one wants to be on them. Why not start your own PayPal service and accept everyone?