How would you go about fixing that Constitutional Amendment-wise?
I have some ideas, but they need some ironing out, IMO.
Actually, it's incredibly simple - just make the government establish jurisidication in every case, before it can proceed. In other words, make the government "presumption" of jurisidiction illegal.
Secondly, require all laws have an explicit jurisidiction statement, with all corporate terms listed and definied, in the laws - statutes, regulations and policies - themselves.
And it's hardly a novel idea - try suing the government, and their lawyers will demand you "prove jurisidiction, prove standing" without even looking up from their popcorn and Netflix, let alone reading your complaint.
But applied to THEM? Hah. Yeah, they'll get right on that...