All of the "problems" you state are valid, but targeting patent enforcement to fix the problem is like trying to stiffle a food poisoning epidemic by changing the way people eat instead of fixing the source of the problem which is in the food prep.
Patent trolls are succesful because of the millions of worthless patents issued (i.e. scope that actually does overlap prior art, such that people think they have broader protection than they actually have). The other reason is that people are filing patents (and getting them granted) based on concepts that seem viable in principle, but which they haven't actually distilled to practice (ahem - Magic Leap).
All of these issues can be greatly mitigated by reinstituting (1) the rule for inventors to actually demonstrate the technology they're patenting to the USPTO.
Patent trolls are succesful because of the millions of worthless patents issued (i.e. scope that actually does overlap prior art, such that people think they have broader protection than they actually have). The other reason is that people are filing patents (and getting them granted) based on concepts that seem viable in principle, but which they haven't actually distilled to practice (ahem - Magic Leap).
All of these issues can be greatly mitigated by reinstituting (1) the rule for inventors to actually demonstrate the technology they're patenting to the USPTO.
1. https://www.uspto.gov/custom-page/inventors-eye-what-are-cur...