It is not a binary "banks always want less regulation". Banks, like other entrenched interests, will be for or against regulations, depending on if they advance

It is not a binary "banks always want less regulation". Banks, like other entrenched interests, will be for or against regulations, depending on if they advance their interests or not. You see this in every industry. The energy industry hates environmental regulations, but they like more regulations when it serves to diminish the viability of alternatives like solar.