I would have less issues with writing like this if they actually cited some exampes where laws were broken, and which laws were broken. I'm not pretending that the whole thing was always on the right side of the law - I'm not - but you can't just say 'they're all criminals, lock them up!'.
Because from what I've read, most of what caused the issues were not only legal, they were government backed up and sanctioned.
They might have been a bad idea, some morally wrong, some the result of some very poor judgement or influence by the wrong lobbyists. But criminal in the popular sense is vastly different from criminal in the law sense.
I'm right behind locking people up for breaking the laws. But if it's going to happen, someone needs to cite specific examples where specific people (or companies) broke specific laws.
Because all I've seen is a case where the government relaxed regulations regarding speculating with depositors money, opened up the monetary taps to let debt flow freely, and then guided that money into questionable lending for social and political purposes.
Completely unlike the insider trading accusations from the 1980's most of all the obscene money that was taken off the table was done in plain view of the regulators, and backed up by politicians convinced they'd found the magic cure for endless economic growth.