I suspect if we called up a militia leader from the back woods of Michigan or Kentucky, even they would consent to very temporary quarantines. Even if it meant US army troops patrolling their residential areas.
In fact, I suspect more conservative people would even be more in favor of stricter lockdowns, on average. While progressives are now following the advice of the medical establishment, the initial instinct is to not do things that "sound conservative" like shutting down borders and so on.
(Similarly, while many conservatives would agree with the idea of quarantines, they would remain very cautious of any unnecessary restrictions on their liberties, watchful of the government taking advantage of the situation to pass laws the conservatives oppose. If for example, the military patrols said they wanted to knock on every door and collect all the guns, their support would rapidly reverse itself.)
No offense meant to either side. I don't strongly identify with either of these labels. Just my honest opinion based on my personal observations.
(Also, I'm aware that particular conservatives and particular liberals may have expressed opposite views to those above, but I'm talking about my perception of the group average, not particular high profile examples. Also, particular individuals may take unusual stances due to personal business or financial interests.)
I feel like a lockdown / closure order for the Seattle metro counties will be coming within a week or so.