Within the past week I answered this question with a simple, No. Later, I elaborated a bit. Basically, my argument was and is that the demographics are all wrong for such an eventuality. The military is overwhelmingly--as in up to 70%--white and broadly conservative in orientation. The Left--as long as it retains control--may be able to destroy the disciplinary structure and effectiveness of the military, but it will do this by driving out irreplaceable human resources. But they will find few if any replacements--certainly not sufficient replacements. Snowflakes and street theater warriors are not interested in full time military duty. Period. In the meantime, if Lloyd Austin really tries to purge the military of "extremists", he will simply have returned large numbers of trained conservative warriors to civilian America. That's self defeating from a Leftist perspective.
Today Brandon Smith addresses this concern, shared by many. But he adds some data to fill the argument out. Below is an excerpt from the longer article: