Well, women do both enlargement and reduction surgery. Idk what the ratio is, but I believe more women do enlargement. Why? Because of the same misconception - just like men believe women prefer bigger penises women believe men prefer bigger breasts. That's why enlargement is usually done because of complexes while reduction is usually done because of medical problems. Exaggeration of sizes as a symbolism of fertility in art and history doesn't proof its connection to sexual preferences- it can be, but rarely is.
Yeah, I believe the data, however porn is porn and reality is reality. I mainly search for incest and loli porn (hentai) - things I would never do in real life. Just because women like to watch an actress taking BBC doesn't mean they want to do it themselves. I knew a lesbian who liked to watch girl being fucked by a huge dick so... you know.
Women not telling whole truth, I believe that also. It's like a joke, when man tells about his body count divide it by 2 and when woman says about her body count multiply it by 2. I would assume many men would lie in survey asking if they are virgins or not - because of stigma as you said earlier.
Summarizing, research isn't really too accurate because of both sexes lying about certain things, porn search data doesn't correlate to preferences in real life and my personal experiences and conversations with trusted people means nothing because it is not even close to a control group one would need to draw any conclusions. Another thing is the region. Inhibition is certainly different in US, it is certainly different in my country and that is certainly different in some conservative muslim countries.
It was nice talking to you and seeing a different view on the topic, but it's time for me to go to sleep. Have a nice day and good night.