I'll admit to a little frustration with people who act like current law (usually the first amendment) protects people from "cancellation" by private actors. But I'm more open to arguments that we should create new employment law that makes it harder to arbitrarily fire people. I don't think this is a good idea, for the record, but it is a reasonable argument to make. Many other countries have much stronger worker protections, which work well for them. I don't personally think they would fit with all the other interlocking policies in the US, but it's definitely not a crazy thing to discuss. But it's also not the case that it's a first amendment issue.