Coinbase have always been about pure profit. Everything from insider trading, violating their own policies to list shitcoins that their shareholders told them to list, selling client data without telling anyone, etc.
I'm not in the USA so I'm afraid I can't offer you suggestions of alternatives, but I would see this as a good opportunity to move away from Coinbase altogether.
no doubt, i've always hated coinbase's politics. to be fair though, there isn't a single exchange out there that doesn't fail in one category or another. shitty UI or trading engines, shady coin listings, volume manipulation, overkill KYC, pandering to regulators/law enforcement, etc etc etc.
for years now it was hard to justify trading anywhere else (that goes for EU and UK traders too) when you could literally pay
zero commissions at coinbase. i used to happily pay 0.2% at btc-e for the privilege of no KYC. now i'm depending on bitmex, and i hate keeping coins there because USA customers are prohibited.
just wondering what's out there. it's been a couple years since i looked for new exchanges.....