Back around 1965 when the Angels and hippies shared the San Francisco scene, they got *invited* to one of the first SF area antiwar demonstrations, at SF State, I think, maybe the Presidio, still very much in business then.
Most of the Angels had been in the military at one time or another, some in Korea, a couple of the ols far...fellas [and Boozefighters] in WWII. And they weren't having any of it; they went in and broke heads. A couple got arrested by SF cops, some of whom for the first time were shaking hands with Angels before arresting them, and a couple of whom the cops *forgot* to handcuff. One of the more memorable photos from the ball was one of Tiny, who very much was NOT, being led away grinning by two cops both of whom were a full head shorter than he was.
The hippie/university lefty/druggy crowd decried the loss of one subculture of their allies, to which the Angels had two words to say about that, one beginning with the letter *F* and the other with a *Y*. I doubt you need to buy any vowels.
Both Ken Kesey's book on the hippie days/LSD bus saga of those times and Hunter Thompson's book on the Angels from a couple of years later have at least partial accounts of the affair, which gave the bikers a good deal of support from veterans groups not just in California but all over the country. At least one major veterans organization had a senior member climb on his own motorcycle, ride it across the country to Oakland, and drop a thousand dollar bill, still around inthose days, on the Angels as a gesture of thanks to pick up the tab for a party for their job well done.
Things were a lot different in those days in a lot of ways, but in a few they're still the same, too. And I wouldn't bet on the possibility that some present-day members might feel like carrying on their club's old traditions and policy. We'll see.