Foids want a really tall man, one who towers over them. One who looks down on them (literally). I think it's exsaturated by the fact that these foids missed out on teen love (real teen love, where the man isn't a teen). These foids are reliving their trauma of not getting a grown man as their owner, when they were in their early puberty and try to fix it by all sorts of emulations, but it will never come close to what nature intended.
If those foids were married the traditional way, then they would be small compared to their man and these dynamic would be fulfilled and a special bond is created, then once the foid grows up she doesn't have this gaping void in her foid soul and she wouldn't care about how much taller he is anymore. The first expression and memories are the most important in shaping the view someone is viewed.
In men who haven't been in that role (this includes all incels), similar ptsd is present. That's why so many men gravitate towards anime – the foids act like little teens.