Why are white males becoming so beta and effeminate in the 21st century?
aside from multikulti stuff, because a certain number of them realized the fact that other cultures or gender shit arent so bad as they assumed, and have actually started to get into it and expansively share it with anyone else over internet. you animefags are one of them.
also there are no such alpha whites anywhere anymore. in short, developing and monopolizing the latest technologies were automatically making them alpha and seemingly manly but that era was over. you gotta admit the modern alpha and actual whitest people are sensitive hipsters or dull normalfag actors on hollywood movies. im not even kidding.
you are right, this IS a thing but you have to wonder how much of the masculine image is, for lack of a better word, a meme. Most of history was powdered wigs, pink was a boys color, cowboys never existed they were just invented to sell cigarettes etc.
In fact, go google it, I bet what you'll find is this perceived masculine image arose in the 20th century alongside cinema and adverting.
If you want a non meme answer:
Women have different preferences for men depending on the economic and health situation. Men with more testosterone (and therefore associated features) are considered better mates in places that have economies based on manual labor and major problems with disease (for some reason high test men have better immune systems). So women flock to them.
But as a country grows richer and shifts to a service economy with much lower rates of infection, women tend to gravitate towards more feminine looking me. The prevailing theory for this is that men with higher estrogen levels are more likely to stick around. If we lived in a shithole then it wouldn't matter if they stuck around because they cant provide and are more likely to die.
You see this phenomenon all over the place, from pic related to the heavy representation of homosexuals in the media. Ask yourself- who are the manliest white people? Probably Russians or some other eastern European cunt. America started transitioning in the 80s away from manufacturing jobs and all of a sudden the dude who looked the most like a bitch was the one getting the pussy (remember leotards and perms?)