Cows are forcibly impregnated in perpetuity by humans, separated from their children and then had their milk taken so we can drink it. As soon as the cow can longer be impregnated and becomes unprofitable, it is killed for meat.

If a man sticks his fist in the vagina of a cow for fun, it is sexual animal abuse. If a man sticks his fist in the vagina of a cow, hoping to later kill and eat it's flesh, it's lunch.

I think a comparison is valid. Just because you are a willing participant and enabler in this animal sexual exploitation does not invalidate or soften the facts.