The military has a chain of command. For the military to consider stopping a “coup” they would have to resist everything they’ve ever been taught about obeying the chain of command, civilian command and control of the military, and so forth.
The question might not be who supports Trump, but who is strong enough to not only resist with their resignation but actually willing to confront them?
How would that confrontation work? There would be all kinds of legal questions and uncharted territory.
Right now, what we are seeing is a sitting president reject the will of the people, and we’re seeing one of the two major political parties enabling him to that end. What’s brewing right now before your very eyes is potentially the most serious political crisis since 1860.