> Should companies have to advertise mammograms to men?

That's the same strawman though! There are an endless list of products that are clearly targetted in some kind of inherent way. My point is that there is an equally large list of ones that are gray areas, and that if your policy is "advertise whatever to whoever you want" you're going to be engaging in an awful lot of accidental discrimination.

So sure, make your exceptions for tampons and birth control. Just let them be exceptions.

> Why not? I don't see how people would be negai impacted by not being exposed to vacation deals.

You say that now, until, oops, it turns out you've been running ads for condos in a de facto whites-only resort community. Who could have known, amirite?