It's also easy to imagine that Trump is sending his military to Portland. People forget that the military is actually really big and pretty complex.
Most people join the military because they want to get out of poverty. Some people join because they believe in it. A lot of people are just too young to have any kind of politics, but some of them do develop politics in the military... and some of those folks become anarchists.
There are Nazis in the military. It's a big problem. But there are also anarchists who signed up before they developed a critique of the state, and now they're kind of stuck for a few years until they can get out.
It's also worth recognizing that a lot of people join after they graduate. Basic training is like 22 weeks. So, assuming a random selection, there really aren't a lot of folks who would be deploying to PDX who would have joined under Trump. That's just assuming a random selection, and there may be other things at play that I'm not aware of, but the majority of the types of folks who would get deployed now would have joined under Biden.
The troops who will deploy (if they do deploy) may very much not want to be there. These are also not monsters wanting to kill (like Trump wishes them to be). They're kids from nearby towns. That's not awesome, most of Oregon has absolute shit politics. But joining the National Guard doesn't necessarily mean that a person has any politics at all. All of this is worth remembering.