When I first started building things on the web in the 90's, people weren't de-platformed just for their speech or beliefs (no matter how bad it was), as long as it was legal.
Now I have to think through every little project and decide if it's going to fall on the bad side of some person at some vendor, or if even one of my users will say or do something that will do this. (Not to mention that the number of vendors that I need for any little project has exploded!) I have to wonder if my search results will be censored for me, as if I am somehow not an adult.
I can't help but feel like something very significant has been lost. It feels a lot more serious to the future of the net and to democracy than even losing a historical artifact like Geocities or Altavista.
This new way just doesn't feel sustainable. The sea change in the desirability of de-platforming, as if de-platforming your enemies is actually a good thing, just feels irreconcilable with the open ideals that the web was founded on.
Can we ever go back to how it was, and even if that were possible, would it even be desirable?
Second, if you are building your business based on relying on a certain vendor then you should re-build your business.
Third, if your business cannot survive on any platform then you may want to re-think your business, but if you still truly love that business then go build it on the decentralized web and put in the hard work to make it work.