This is nothing new. It has been known for a long time that the automation and shipping of jobs overseas, as well as the busting of unions and decline in union membership, have all disproportionately affected blue collar men more than women or even both genders in white collar jobs. So no wonder that blue collar men, who used to be solid Dem voters, are now mostly Repub voters, esp. since the Dem Party has not only sold them out and left them behind economically, but the party has also promoted identity politics as a substitute for class warfare on behalf of the working class, esp. working class men, and instead advocated for minority groups, women, and immigrants, all people that white blue collar men, somewhat rightfully, have seen as competitors for their jobs.

No surprise that white blue collar men are so attracted to Trumpism and the Repub Party, since it plays to their legitimate grievances against the Dem Party on economic and trade policy while it also appeals to their sense of victimhood regarding the Dem Party and the system favoring every other group over them, such as women, minorities, and immigrants, at least as they see it.