Sorta? That's a take that's not including a couple things, though. First, it's pretty much directly because of Trump that the government wasn't acting early, in a coordinated fashion, or competently. As in, besides the preceding (and ongoing!) sabotage, Trump reportly even stepped in to STOP the government response. Then there is the part where he's actively acting to sow disinformation to the general populace and push the GOP into making terrible decisions from the start until now, which has had a very real effect on the spread of COVID. Then there's the part about using political strategy to determine what response is taken - in this case, the calculation was that they expected that it would hurt blue states more and that *that* would give them ammo to attack the Democratic leadership for political advantage. So much more could be said, but... yes. Once it was wildly out of control, which happened in very significant measure directly because of Trump and his Administration, it became dramatically harder to do much about.
Forget February, though. The US should have started acting in *early* January at the latest, with at least more general precautions and training at borders and airports, ramping up PPE production, and other preparatory measures, as part of a larger, unified government effort, had things been run competently. Then we wouldn't have needed to throw everything we had at it in the first place. That an ounce of prevention is worth a pound of cure is still extremely applicable here.
Cases? Of course. COVID was pretty much definitely going to reach us regardless - hazard of so much international travel. I'd suggest that I wouldn't be surprised at all by there being tens of thousands of cases even with a competent government response. It's just that the case numbers and deaths would be a tiny fraction of what they are now. As I've pointed out/agreed a number of times, it's not Trump's fault that COVID got here. That was never something that I've criticized him for in the first place, though. The absurdly numerous things that Trump has done to make the disaster worse are his fault, however.