When you just make stuff up its easy to prove your point, I agree. There's no reason to assume lives get saved because of deregulation, there's no evidence to that, and plenty to its opposition.
If nothing else, the opportunity cost of a few hundred billion saved eventually, even if it's just a small fraction of US total government spending, can be used to save or improve many many many lives.
Hyperbole like "yeah murder more people its good because I can't tell what is good or bad" doesn't help.