If you watch only one video on the DSA, I strongly suggest this one. It’s an interview with a former member from back when the organization was advocating more of a European-style welfare state. He watched it morph almost overnight into the extreme left-wing group it is now, and dates the change to around 2014-2015. He is very angry, and has dedicated himself to fighting DSA, even to the point of supporting its opponents on the right such as Michigan’s Mike Rogers.

It’s definitely worth a listen, IMHO: