Patenting seeds is deeply troubling.
Check out Vandana Shiva if you haven't already: https://vandanashivamovie.com/
I think there are similar movements in other countries.
There was a story of a Canadian farmer who did not grow Monsanto crops but because of pollination from a nearby farm, he ended up with some of their genetics and was successfully sued in Canada. (But I don't know if it's true!)