You're reducing this too far. It's simple. Advertisers may have several reasons to not be shown on sex-related content. Regardless of how mundane that content m

You're reducing this too far. It's simple. Advertisers may have several reasons to not be shown on sex-related content. Regardless of how mundane that content may be. The first and most obvious reason is demographic. People who tend to be sex positive (or whatever the term is now) tend to have certain purchase patterns associated with certain lifestyles, political ideologies, and age groups. They may not sell a product and don't want to pay for ad space. Next, it may be off-brand for them to do so anyway. It might make sense for Trojan to place an ad on a video about the proper use of condoms, but not Cheerios. Third is political neutrality. Since our current society is on a perpetual witchhunt and reduces people and entire companies into the sum of their political views it's often easier to simply take no stance. It's better to not do anything then do something and then tomorrow it's "bad" or wrongthink. Finally, sex-related content is a hot button issue related to children. One "sex positive" state, California, just passed a law to come up with yet another way to "protect the children". If you demonetize all of the content with broad strokes you can go to the states and say you comply with their rules. It's far, far more complicated than "collective normalization". One could even argue that could have blowback that we can't measure. Sex-related content extends far beyond a simple female breast or a tutorial on using a condom.