If you want to understand the rise of President Trump, you must understand the rise of 4chan, and, leaving gender normativity matters aside (even though that's not possible), you must understand that the issue is, these guys don't have girlfriends, and it's not the left's problem or duty to reach across that particular aisle.
That's a brief summation of this post by Belle Waring, which responds to this article by Dale Beran.