https://www.politico.com/newsletters/morning-money/2018/10/30/wall-street-shifts-to-democrats-394652
If you look at that article from 2018 it indicates that 52% of Wall Street money went to Democrats and 46% to Republicans. That does not sound like all to me.
I completely agree that Wall Street has too much power. Both parties have followed excessive deregulation policies which are responsible for our current trends.
The solution is to weaken the power of big money in politics. I would start by repealing Citizens United and passing campaign finance reform.
In terms of the RINO charge Romney has been a Republican his whole life. His father was the Republican governor of Michigan. My ancestors have been mostly Republican since they fought in the Civil War. If we are called RINOs then why should we vote for a party or president that rejects us?