How so ?
Facts: Closures were/are considered a reasonable strategy to stave off infections
Firstly, it's pretty broad, what closures are you referring to? But either way, there is still plenty of debate about the efficacy of lockdown strategies, not to mention that even were this to be unanimously accepted, that wouldn't mean everyone agrees that the benefits of such strategies would outweigh the costs.
Trump combined that with hate against China
Again, I'm inclined to agree that Trump is a racist xenophobe, but that's my personal belief. Back in Jan 2020 when all sides and media were naming the virus "the Wuhan virus" or "The Wuhan cold" and the like, that wasn't hate against China, but when Trump did it it was?
which I believe spilled over to Asians in general.
So this part isn't a fact, it is a personal opinion, but the fact it is adjacent to is not tinged by your opinion?
Bidens criticism of the policy can be interpreted as criticism of trumps attitude OR the policy
Really? There's plenty of statements out there from that time, and the cumulative effect cannot
honestly be interpreted that way
but his tweets condemning the policy are wrong.
In your opinion
Now with the theory above most people will still view it as wrong or right based on their pre liking of Biden or not and that’s why he will never apologize for criticizing the policy, his supporters will believe he didn’t do anything wrong.
Now how to break out of this cycle
There is no need to apologize for getting something wrong about a new virus no one knew anything about if your opinions were based on data and the knowledge available at the time. If your opinion was based on politics, however, then you would need to try wiggle your way out of your earlier positions instead of saying "we now have many more months and millions of cases worth of data, and many worlds more knowledge and as such have changed our positions."