"Plus", I've noticed, is a recent new right-on thing. I think I've mentioned "Atheism +" here before - the notion that atheism, on it's own, is no good, you have to also be in favour of various political notions as well.
Contrawise, I've heard of "Antinatalism +", or "Efilism" as it's sometimes called. It's not enough to not have children, it's better to commit suicide.
So, if your radicalism just isn't radical enough, ad a "+" to it. Like putting a donk on it.