“I live miles away from farms...there are plenty of milkweed lining the roads.”
And that sounds like conventional farming where Roundup isn’t sprayed indiscriminately. You’d kill your own crop if you sprayed glycophosphate on it. Conventional farmers will use it carefully.
The problem only arises in huge monoculture plantings where modified seed is used and the entire area is sprayed with glycophosphate. The Monarchs better hope that some Roundup resistant milkweed shows up.
The farms do not cover all the countryside. And that was my point. There will be no roundup sprayed where fields are not in existence. The monarchs will thrive there.