Trump is the chief executive. His job is to run the federal government’s apparatus. His job is not to decide matters that are reserved for the Legislative branch to decide, however slow and dysfunctional the Legislative branch may be. Right now he is blocking the entire federal government from operating, because he wants the Legislative branch to decide something as he alone sees fit. This is a gross dereliction of duty and he should be removed from office for refusing to work.
(This is putting aside a different issue - whether he is an agent of a foreign power seeking to undermine and harm the United States. That would be treason. As of yet we have circumstantial evidence of this but no direct evidence.)
