Crops are sprayed with glyphosate and all the commercial formulations include animal tallow.
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.
The environment will thank you.
A certain percentage of soil is made up of decomposed animals, so anything grown is not vegan by some arbitrarily strung out standard. Where do you draw the line?
organic usually do not have any regulation and they use pesticides and herbicides and fungicide etc. plus the vast majority of organic farms underpaid labour that is a whole new treat to discuss! [0] not even their efficiency on large scale to feed a 7 billion human population
[0] i volunteered for about a year in programs like WWOOF
edit: and ah, huge farms are using fertilizers from rocks for the vast majority of the time, it would be a big treat to spread manure over thousands of hectares/acres and not even considering the secondary treat of having to shake it from time to time so it can be good absorbed in soil… and regarding organic farms using manure etc. please, i prefer you eating meat than supporting organic farmers overexploiting poor people thinking they have sacred asses that are helping the planet that is heating less than ~1 degree Celsius each 10 years with humans at full rage in industry :]
2ndEdit: not that i am happy or not caring about global warming; i am fine being vegan for years now and my options of cycling and using the public transport, not having children etc. but it is just about a short time (i hope) to politics roll laws about sustainability and the stuff can be more green again. as hoping on citizens being is just suicide. people are too static on their conformity of modern life, you know… what a disgrace changing excessive meat intake for some beans and 4 seat cars for some cycling and unpleasant fun on trains or buses