There is nothing about using Roundup that would make one culpable. Roundup Ready mainly means "able to tolerate tons of glyphosphate without dying." Glyphosphate works in use cases apart from Roundup ready crops. I used it to kill poison ivy in my backyard at one point.

Sadly, you and I are not "Roundup Ready" and don't have any mods to our endocrine system to help us cope with eating it and the additives (surfactants) used to bind it to crops.