The difference between being a vegetarian and being a vegan is that the latter avoids using any animal products, no matter how trivial the amount.
Glyphosate doesn’t make vegetables non-vegan, the animal fat used in its sprayable formulations does that. Vegetables and grains come with a slight coating of animal fat that is then mixed in with whatever food is made using those ingredients.
"Veganism is a philosophy and way of living which seeks to exclude—as far as is possible and practicable"
The important part being "as far as is practicable". Nobody is a perfect vegan, as that is close to impossible, but you can get very close and prevent a lot of unnecessary suffering and lower your carbon footprint.
Certainly, if one can adhere to a non-animal diet, one can also adhere to an organic non-animal diet. It’s not like it’s an impossible choice to make; the produce and products are there.
Glyphosate doesn’t make vegetables non-vegan, the animal fat used in its sprayable formulations does that. Vegetables and grains come with a slight coating of animal fat that is then mixed in with whatever food is made using those ingredients.