You could of course sue Google, but that's an extremely expensive and time-consuming option, rarely worth it for a mere consumer. Going to court certainly won't make your suspended account become unsuspended any quicker.
Just think about the army of "Facebook content moderators" who were a popular topic on HN recently due to the concerns over their mental health.
(I am offering no solutions here, for I know none)
Maybe they really just need to offer a paid account option with real support, since that has much better incentives
https://workspace.google.com/pricing.html
It includes support, but I'm not sure if that helps in cases where google thinks you have abused the service. I just use it because I like having my own domain, and so that I don't lose access to my email if google locks me out. The idea is that I can update my domain's MTX records and use another email service.
We had a paid Google App account. One of our workers would only login from their computer. It died, and she tried to login from the new computer. It gave a unrecognized machine error, and we had to hire someone to resuscitate the old computer for her.
I know of a company that had the entire companies' accounts suspended without warning because one user did something that violated their terms, but they could not figure out what. The company lost three months of revenue from it and I am not sure if it caused bankruptcy. No help at all from G.