The answer is that the European and American left, which traditionally stood for the working class and peace (bread and peace) no longer exists. The cause championed by those who pretend to be the "left" of today is identity politics.  The "left" no longer champions the working class, which the "left" dismisses as "Trump deplorables," consisting of "racist, misogynist, homophobic, gun nuts." Instead,the "left" champions alleged victimized and marginalized groups—blacks, homosexuals, women and the transgendered. Tranny bathrooms, a cause unlikely to mobilize many Americans, are more important to the "left" than the working class.