So I got a few reports based on this.

In the interest of transparency - I’m leaving this up for now because it’s not illegal:

• Sexualising the baby would be considered rule-breaking and the comment removed, but that isn’t the case here
• Sexualising the act of breastfeeding (which some people think this comment does - but it’s not unanimous) is perhaps in poor taste, but not illegal in itself.
• Expressing a preference for, uh, certain physical traits is fine, although that may again be viewed as creepy by some people.

My verdict here is that this is not illegal. Regardless, the downvotes here should be a signal that some people find this distasteful.