I kinda think this is a valid point.
Firstly, "No Kings" was always a bit of a piss-weak euphemism. It clearly means No Dictators, but that's too strong language for dems and casts uncomfortably truthful light on the system they want to be in charge of.
Secondly, don't give a standing ovation to an unelected monarch. Just don't. He uttered the words "checks and balances". So what? We have literal concentration camps and no rule of law. A child rapist and a pack of drunk nazis openly loot the public purse. We're way past checks and balances.
This is yet another example of the dems failing to understand the political moment.