Being human beings no different than the genpop, yes.

I'm not sure how it could happen. Per posse comitatus, the US military is not allowed to operate on US soil. But, yes, the military is trained to obey orders. They also are supposed to disobey illegal orders, but there are very few albabys in uniform. I suppose it is conceivable he could so corrupt the chain of command, that no one would oppose him if he issued that order. From the sounds of it, that is what he intends to do (i.e. fill every conceivable position in government with lackeys and sycophants).

It would be great if he got some KFC stuck in his throat before he can do that. Or maybe a stroke. I'm not picky. His cabinet certainly won't 25th Amendment him, even if his dementia progresses to where my mom's was (which is quite possible in 4 years...mom's decline accelerated significantly during those last few years).