Why did he continue to promote the vax,

Did he promote the vax or did he make a point of saying its up to us to determine individual risk level?

or pretend to know what would have happened if... Truth is, we don't know.

We do know though. Because the people subservient to the globalists told us upfront that they were going to keep people safe and shutdown until there was a widely available vax. You can say "we dont know what would have happened" but thats nonsense. I mean sure its impossible to know exactly how everything would have played out because we cant go back in time, but by that same token you cant possibly blame Trump for things that happened because you dont know how things would have turned out if he hadnt done what he did.

We do know what he did and didn't do, and reminding people of it is not whining.

Correct. But you arent reminding people of what he did, i am. What youre doing is accusing him of maliciously lying to the public and causing people to die. You would rather see 3 years of lockdowns a totaled economy and global vax tyranny instead of admitting that Trump was smart enough to see all that coming and act on it.