If banks hold crypto of their users,
You understand what we are talking about here, right? It is no different than Fiat and not sure if that is what Satoshi wanted to happen but probably thought that was inevitable in the end.
it will be similar to the online crypto exchanges we know already nothing different,
Specially the CEXs which store people's data and give it to the governments to evaluate. Banks of course do that and it will make it even more easier.
the only difference will be that these commercial FIAT banks will help to spread crypto faster to the non-crypto average person, meaning more value for bitcoin and cryptos.
That is a good thing. We will see a lot of new blood entering crypto and that means more market movements and rising stock prices of these banks. Soon enough other countries will be forced to follow suit.
If this trend continues the good effect is that bitcoin will become more popular than those country-represented shitcoins.