Yes. There are thousands of aviation incidents and accidents every year in the US. None of those have been scheduled carriers. General aviation, crop dustets, flight training, etc... The DC crash was notable because it's the first fatalities due to mishap on a US SCHEDULED air carrier (called part 121 in the industry) since 2009. Emphasis on scheduled. Because of the notability Since then there has been increased scrutiny on aviation which is why you've heard about 2 of the other 3 at all. So 4 since trump took office isn't remarkable. In fact, I'd wager there's been a lot more.
Now does firing 100s of controllers make the ATC system more safe? No. That's gonna be a disaster.
True. It's going to be bad. But it's hard to pin the blame on trumpmfor the past incidents. The firings just happened