Warren is exactly correct.
The empirical results are crystal clear. Financial markets perform better for all of society with proper regulation. Without adequate regulations markets boom and bust in a disastrous fashion. The idiots who still hold the false belief that unregulated markets will produce the greatest amount equity and prosperity have been PROVEN wrong.
And yet, they won't let the fantasy go. Just like every other faith based belief, they refuse to let real world experience get in the way of their favourite daydream.
And BTW, just because sane people advocate for regulatory oversight, this does not equate to communism or total govt takeover.