Do Republicans wish they had not deregulated the banks that are currently failing, back in 2018?
That would require self-awareness, introspection, honesty and remorse. These are qualities that are sadly lacking in most modern Republicans. So the answer to your question is no.
Instead, what they do is to blame others for what they themselves have caused. They deflect, lie and attempt to confuse the issue. So they blame the failures on bullshit memes like ‘woke’ banks, whatever the hell that means.
It would truly be funny if there were not so many ignorant and cynical people in America with no critical thinking skills and who take every opportunity to blame ‘others’ for their own failures. And these same people vote and support the same people who cause these failures and train derailments, and bankruptcies, and declining lifespans and poor health outcomes and child abuse, and on and on and on.
These people are responsible for America’s decline and they will always blame others for what they are guilty of.