It is not the job of the president to run all 50 states. The States run themselves. It is the job of the president to run the Federal goverment which is limited constitutionally to protect the States.
It is not the job of the Federal Government to concern itself with the internal governance of the States. No one organization of men could ever competently govern a Federation so vast as this.
Don’t take this the wrong way because I think you are 100% correct. But when dealing with libs like this (if it has to be done at all) that concept is way beyond their ability to grasp.
I think you (generally speaking, not you personally) will be further ahead by giving them the raw emotional kind of arguments they are so used to. If you can get them with that, then introduce the factual things that are what really matter.
I think of it like dealing with children because in reality, that is their functional reasoning level.