Kinda hard to do, if you complain about unique circumstances at a specific location
You at least will have some leverage and the ability to deny
The screenshots that the hotel provided show that he made multiple Google accounts with his real name to repost the review.
Then his freedom and his livelihood suggests he should maintain a low profile. Right or wrong, he's not in America, and shouldn't behave as though he is.
Perhaps this is an effect of a new rise in "local tourism" necessitated by Covid-19. Locals reviewing tourism industry businesses instead of international tourists.
And don't go back
yeah, at the very least you won't get spit in your food