Yes it was backed by collected data. The collected data supports a rule you're fighting to disbelieve. Do you have "new" data to support an uptick of female opinions on men's profiles or men in general? I'm sure you don't, because A) data doesn't work in a way where surveys are given every other year or rendered obsolete and B) the new data wouldn't support your position anyway.
Yes, all those external factors existed, which I said in other threads, but again, this 1 to 1 shyt still wasn't going on, or was forced by families. Men being able to "reproduce freely" means so are woman, and the hypergamy you speak of is present, obviously not to the degree of animals with laws and complex social constructs, but it is present and growing.
Again, income is not the sole Top 20% factor, evident by this archetype/stereotype of modern men being high earners but nerdy/lacking masculinity, men going on dates but women running home talking about "he's nice but there's no spark", or men in relationships/marriages where they are essentially contracted sugar daddies.
You can continue being obtuse if you want as if there isn't a list of traits desired outside of money to make what's considered a complete package. The rule does not state that only 20% will sleep with a woman and 80% of men are doomed to be virgins, because modernity does alleviate some of the nature of the rule, but this crusade to "debunk" it is futile war.
Lol at women not being wired to be hypergamous.
And you think "more women" are going to find men attractive now?
Again, niqqa please.