What about the 8 years before that? Clinton did a fair amount of deregulation, and holds more of the blame for the financial meltdown:
http://content.time.com/time/specials/packages/article/0,288...
Regulatory capture (i.e., capture by whatever's being regulated) and cutting back regulations both have the same effect: weaker regulation.
Also Ajit Pai: Destroy net neutrality, which was seen as a "regulation" in the way of a free market.
https://www.nytimes.com/2019/03/26/us/politics/boeing-faa.ht...
Now, if you don't think regulatory rollback is to blame, that is a different thing. Attack that. Attacking the detail that republicans have been the main ones rolling back? That is actually making it unnecessarily partisan. I say that as someone that agrees that the point is stronger without bringing up who did it.