Google is getting away with this behavior because of their monopolistic behavior. If they had competition, they would be spending billions on customer support, but because they have a monopoly, they can get away with having virtually none. This is their way of saving money and taking advantage of their monopoly. It's a shadow version of monopolistic behavior where the absence of services can be done because we have no choice. We need to politicize this issue.
Facebook is exactly the same way.
When a company reaches such dominance, and when people completely rely on a company like we all rely on Google, Facebook, et al., then we need regulations to prevent what is happening right now, which is using their monopoly to make life easier for them by not spending any money on customer support.
Poland is introducing a law [0] to provide a right of appeal to the courts if a person is banned by social media platforms. The law's intention is to limit the platform's ability to remove content that they claim violates their policies, but which doesn't violate Poland's laws. Depending exactly on how that law is worded and implemented, it might provide protection for people banned for non-content reasons as well, including the inscrutable "we claim you broke our rules but we refuse to tell you which rule you broke". Of course, this doesn't do anyone outside of Poland any good, but other countries might copy Poland's law.
The downside is that Poland's law is inspired by the banning of Donald Trump and other right-wingers, and being associated with that political context is going to discourage people on the left from supporting it, even though I think people on the left could benefit from it as well.
[0] https://www.theguardian.com/world/2021/jan/14/poland-plans-t...