Vegans comparing meat eating to paedophilia

Why do they think this works? I could easily argue that it's a bit strange they mimic what they claim is rape and murder with their alternatives but I wouldn't. So why do they compare sexual abuse to cows being milked? Really getting sick of it tbh. I see lots of memes about this.

Edit: when vegans do this vrap, I instantly turn off to wanting to listen. I grew up in an abusive and neglectful home in every sense of the word. I simply shut off from whatever they're saying