[computably]

> Knowing how the sausage is made does nothing for me.

Considering that this is nowadays a substantially less common background, and probably trending that direction indefinitely, this reads more as you being desensitized. It's not like vegans are unaware that people could have a background like yours.

> But bringing any moral/religious reasons for it always seemed silly to me. There’s nothing more natural than one animal eating another. Humans evolved from mostly vegetarian monkeys to predators

Morals and religion aren't about what's natural, they're about what humans desire. Illness, violence, and deception are all perfectly "natural."