You're still vastly overstating the scope of the Posse Comitatus Act. As a matter of policy, the US military is cautious about intercepting hostile aircraft in American airspace[1], but the Posse Comitatus Act doesn't prevent it from doing so.
In particular, your claim that "any action (or effectors traveling) outside base boundaries would generally be illegal" is not only false but facially absurd, since it would imply that the US military is statutorily prevented from intercepting enemy bombers or responding to an invasion of American soil.
In particular, your claim that "any action (or effectors traveling) outside base boundaries would generally be illegal" is not only false but facially absurd, since it would imply that the US military is statutorily prevented from intercepting enemy bombers or responding to an invasion of American soil.
[1] The reasons for which are well discussed here: https://www.navalgazing.net/Thoughts-on-the-Chinese-Balloon