Read his own words and the opinion of his Secretary of Defense' They had to keep him in check from calling out the military against US citizens when he was President before.
The head of the armed forces under his watch has called him a fascist.
This isn't about Commies, if there even are such things. It is about repression of people like you and me. Once he is in office, he gets to create the rules and categories of who he hates. You can help him get in power, but once there he won't owe you anything.
https://www.msn.com/en-us/news/politics/esper-take-trump-comments-about-using-military-against-americans-seriously/ar-AA1siIRp?rc=1&ocid=winp1taskbar&cvid=9cdfa93319ed4fa59f59b2cd9de6cdde&ei=19
https://www.msn.com/en-us/news/world/trump-floats-sending-military-after-us-citizens-on-election-day-citing-radical-left-lunatics-and-the-enemy-from-within/ar-AA1scas6?rc=1&ocid=winp1taskbar&cvid=e2181ccbacd644f58bd1b0566f36b74e&ei=13