There is a difference between recognizing biology, and apps weaponizing it to drive engagement. This is like saying that nicotine releases dopamine so no one can fight cigarettes.
Even disregarding social ideals about listening to people who don’t look like underwear models, the potential for harm is very real - look up Body dysmorphic disorder for the kinds of very real mental health problems this can create in younger generations.
I think given the potential risks, we should have conversations about what this problem is and possible policy solutions. Giving children skewed perceptions of the world, or encoding these kinds of biases about who is worth paying attention to is dangerous.
