Babies that breastfeed are perverts that sexualize women

I’m not really sure how to deal with the situation but whenever I watch security videos of my sister in law breastfeeding her newborn son, I can’t help but think how inappropriate it is for the boy to be so eager, grabbing those…things…and latching on to them with his mouth. He’s a little misogynist, frankly, and I am not sure how to curb his fetish. Of course my sister in law’s husband doesn’t seem to think there’s a problem but I think he just doesn’t want to face facts that his son is a perv. What do I do?