The Democrats are not going to take any part in throwing out the babies with the bathwater! Cooler heads are going to prevail.
There is a huge misconception among Republicans that the Military is made up of mostly Republicans. That is about as far-fetched a thought as thinking Donald Trump is a law abiding president.
The military tracks many things, but voter preference does not appear to be one of them. But the military newspapers do surveys, and they discover that the enlisted tend to be registered Democrat, at least at a higher percentage than general population, and the officers tend to be registered Republican. In both cases they tend to be slightly more conservative, but the most junior enlisted are more liberal. Voter registration is less than the average civilian population, and voter participation is lower too. Significantly, the more mobile the service member, the less likely he is to be registered or participate, and the more senior the member, the more likely to participate. There is a slight but significant difference in some other demographics, but otherwise they look like the civilian voter base. The major complaint military members have is that military votes are either not counted or arrive after the results are announced, or that their votes are uninformed or insignificant in midterm elections. This drives down participation.
Trump has seriously damaged the military support for Republicans of the past, by calling enlisted men suckers and losers, the way he treated military heroes parents, the way he treated John McCain and his family, and pardoning military convicted murderers, misuse of the military, misuse of the flag that they honor, abandoning our allies and leaving them to die, and his insistence to demagogue our allies while propping up dictators, and failing to produce good Veterans policies etc.
Polls have suggested that the military vote came in very strongly to replace Donald Trump as the Commander-In-Chief, and elect Joe Biden this time around.