Whatever happened to the Jewish Defense League? That self presrvation mindset died with Meir Kahane.
Unfortunately the JDL turned liberal after Kahana' left for Israel. Whatever is left of it now is just another left wing racial identity group . . . the opposite of what it was under Kahana'.
Kahana's old second in command has an organization which is more in line with the original vision, as well as a forum, website, and YouTube channel, but at one time they was on the FR banned list because of inflammatory racial rhetoric. PM me if you want to know more about them.