I'd imagine Almond milk is a miniscule part of a Vegan's diet compared to how much meat someone would eat anyway.
This argument really annoys me because it seems like you're trying to discredit vegans and justify the act of eating meat to yourself.
I honestly do not care if people eat meat, but I do care when those people try and use mental gymnastic s to tell me (without any scientific evidence) that what I'm doing is somewhat worse.