"Refuse illegal orders" is like the military version of "stop paying taxes and stop going to work" but at least a magnitude worse. It sounds good and virtuous but there are practical life-changing consequences for doing so.
UCMJ will chew you up and throw you to the side very quickly. Prison is almost a certainty. A dishonorable discharge hangs on you like a felony conviction. And that's assuming they won't use illegal force on you or your family.
They used to say "you can get a grand jury to indict a ham sandwich" but these sleazeballs can't even do that. It's not just this case or this jurisdiction, too.