I don't think we should have no recourse against a tyrannical government, but I just don't see how anyone is going to realistically go up against the US militar

I don't think we should have no recourse against a tyrannical government, but I just don't see how anyone is going to realistically go up against the US military and make even a tiny dent. To your latter point, there are constant human rights abuses/crackdowns on dissent in China, but does anyone intervene? Now consider that the US has military might many times China's. Who's going to intervene? I, too, would hope for defection if the US military was told to start attacking US citizens. It's important to note, though, that the military goes to great lengths to break recruits down and rebuild them into "warriors" aka unquestioning killing machines.