Yeah, that's the kind of thing we'd oppose with violence if necessary (though more likely by moving).
The legality of unschooling in the US varies mostly on a state-by-state basis. When compulsory schooling was first introduced in Massachusetts, there was armed resistance and the children ended up being marched off to school by soldiers. Fortunately, there are still some bastions of sanity - at least, in most places you can just fill out some "homeschooling" paperwork and they won't bother you.
Good for you. Unfortunately, there's no other state that would admit me, probably ever (unless I become very rich somehow). I have to live under laws I can't really influence and just hope they don't change too much for the worse. This is the situation for the great majority of world people.
Opposition with violence to your state sounds completely unrealistic, in any state, including the US. You yourself say that in MA the state sent in soldiers and won. Moving is plausible, of course.
I'm friends with an incredibly smart kid. He's 14, but has been put up three grades in school at one point. He does all the obvious enrichment things which are available in the relatively small Australian city he lives in.
His life experience has been pretty unusual. He doesn't really know what it's like to be challenged in school. All his friends are way older than he is. (Once, I asked him how being constantly around people older than him made him feel. He replied, "Concerned for my future.")
He doesn't know anyone like him, which I think is a shame: he'd probably get along very well with them.
Does anyone know any similar kid geniuses? If so, can I give them my friend's details?
Thanks.