The banks’ choice would be between less profit and no profit.
At the end of the day they’d grumble, but acquiesce.
They’ll acquiesce but stop issuing credit cards to those people who are the higher risks of nonpayment default etc. This is mown or knowable to anybody in congress with an IQ above single digits. Answer : the sponsors do not give a damn about credit availability — they’ve got theirs and the bill will give them a few more PC political headlines