In the sense thst they were basically just mercenaries, the Freikorps has been maintained by the US for ages in the form of groups like Blackwater (now Constellis). But there is no local left to oppress militarily, there is no crisis requiring mercenaries domestically. The US can simply use cops for almost everything. The cops themselves receive increasingly militarized training to use on a civilian population, treating members of the pu lic like an enemy soldier ready to kill them at any moment (while also feeling superior to them). Notably, the major training operations for cops are IDF associated and mercenary groups like Blackrock. There is definitely a UA connection there via mercenaries.

Anyways I just want to emphasize that the domestic violent force we face us cops and there are far too few of us in thr first place for there to be organized resistance in the near future to prompt a correlary escalation. It will be more things like the George Floyd protests where those involved are mostly random liberals doing ineffectual disobedience and getting disabled or killed by cops in response.