Do you have data to support this? And how do you define 'radicalization'? Remember, there was an entire summer of violence in cities across the US after George Floyd. If by radicalization you mean extreme political views, you'll find that those on the left are less likely to date and socialize with people on the right than vice versa.
https://www.pewresearch.org/fact-tank/2020/04/24/most-democr...
The center of American politics have very much moved to the right the past 50 years. As such, a small rightward shift from the mean has the appearance of being moderate. What is considered radical left in the U.S. is left of center in European countries.
By quite a large margin more women lean leftward in the U.S. than rightward. Women are more discriminating when than men when looking for partners so it is expected to see the outcome in the link you posted. Tied to the paradox of tolerance, and the definite rightward shift of the center in American politics, we see that it is expected that left leaning people are less likely to associate with right leaning people than vice versa.
We had an insurrection 3 years ago that most people on the right fail to acknowledge as such. It doesn’t get much more radical than that. Far more people think Biden was illegitimately elected than that Trump was illegitimately elected. I could go on with more examples but I think it won’t be productive. Try reading about the historical political trends in the country dispassionately.
Can we just put this lie to rest. Economically maybe, socially very much not, for example abortion is much more restrictive in many parts of the EU than even Roe v Wade allowed. Or immigration, it is much harder to immigrate into Euorpe than it is to get into the US. There are dozens of other social issues Europe is far more conservative on than the US.
In terms of what the purpose and role of government is, Europe is far more classically liberal minded than the U.S.
EDIT: Now that Roe has been gutted by the very conservative Supreme Court your point about abortion is very much wrong. Outside of Poland and Malta, I think Europe has much more liberal views on abortion. Especially when you consider that healthcare is generally free at the point of service there.
https://www.politico.eu/article/abortion-chart-world-map-eur...
Holding mostly centrist views from my childhood makes me "radical left" now as politics have swung hard to the right. I don't believe your notion of what radicalization means to be correct.
The detoxification of masculinity is a messy and necessary process after all. Some may die but that is a sacrifice I am willing to make as the ends justify the means. Do not pity them, they deserve it. They are reactionary radicals.
..Cool and normal.
Right after the quotes you have is written:
Richard V. Reeves, a British American scholar of inequality and social mobility, and a self-described “conscientious objector in the culture wars,” would like to skip past the moralizing and analyze men in the state that he finds them in.
I suppose it fundamentally has to be that way? My understanding is that this radicalization stems from the "they took er jerbs"-type belief about economic struggle, which only applies if you believe in capitalism in the first place. Those on the left believe in the government (or similar model of shared ownership of capital) providing them a living and would be happy to see their job go to someone else. Any economic struggle they face is naturally blamed on that shared ownership model not being realized.