If you haven’t, I urge you get “You Keep Me Hangin’ On,” the book I wrote with Mark Stein of Vanilla Fudge. It’s not just a bio of him, but a history of the era.
One thing that I discovered in the research was that the politics were NOT cut and dried with many of these people. They all leaned left. But Jeff Airplane absolutely refused to do ANY Dem fundraisers as a sellout. Pete Townsend knocked Abby Hoffman off the stage at Woodstock with his guitar. Jack Bruce was a conservative and got into bloody fights with liberal Ginger Baker (Or maybe I have that backward). Hendrix himself, a paratrooper, savaged Euros in 1969 when they questioned him about Veetnam. He said “You didn’t mind when we came over here to save your ass!”
Most of them were Mercedes Marxists. The Beatles had no problem working with the military junta in Greece to secure an island. They ALL carped about taxes. Sure, many like Springsteen, David Crosby, and Don Henley sang a lot about leftist crap, but there are questions about Springsteen being pushed into it by his management; Crosby is a total hypocrite, busted on gun charges, and so on.
On Springsteen, who candidly is my least favorite popular musician on every dimension possible (except for giving fans a great value for their live show dollar), I have it on VERY good authority that Bruce does a LOT of charitable giving, specifically in Asbury Park, but he does it anonymously. I give the guy mega props for that.