I think it's to late for that already, and all we can do is try to make protocol base protocol changes that would include privacy and maybe inbuilt mixing.
We can pretend that concept of tainted coins doesn't exist and close or eyes, but reality is sadly different thanks to scammers like ftx ceo Scam Bankman, Binance CZ and others.
Alternative option is for us to develop separate services that would accept all Bitcoin transactions without checking address history, but I doubt regulators will tolerate that much longer.
They want to limit and cancel cash soon, so I don't see why Bitcoin would be in better position for them