And what happens when we use the right but the government takes umbrage?
Specifically, when the government sees it as a corporation indulging in privileges not granted and you see it as exercising rights?
Is there any way, at all, where you can invalidate the presumption that you are a corporation?
Yes, there are a number of ways. Making what is called a "special appearance" challenging (de facto corporate, i.e. administrative or statutory) jurisdiction is a direct refutation of corporate presumption, and forces the government to prove their jurisdiction or drop their case. This is most easily accomplished by simply carefully reading the law, which many times contains extremely explicit applicability definitions that can simply be invoked directly.
Another thing that can be done is to lobby Congress to remove the presumption of corporate applicability from laws in the first place, or at least raise the bar in its evaluation or lawful presumption by government authorities, and make abuse of this issue trigger the loss of all indemnification for any government employee who misuses it.
But the biggest thing would be to simply spread the word that this is an issue at all. Virtually no person in America except legal professionals even know this subject exists, let alone that it is routinely used to remove every right they have in favor of limited privileges.
How to spread that word is the biggest problem. But success in spreading it is another problem, because people are liable to believe that if corporate law doesn't apply, then no law applies, and in that case they'd run amuck and it would be chaos - a catastrophe. So common law courts would have to be acknowledged once again, to prevent this perceived void in applicable law.
If this sounds overwhelming, your beginning to truly understand the problem.