No I couldn't, because everyone would think it's just some white supremacist/manosphere/redpill nonsense, and likely the only people who would show up would be those types anyway.
Literally every other demographic gets their own "spaces" and "identity groups," and if a white man shows up to those they're seen as invading where they don't belong. In mixed-identity spaces, white men are sidelined because they're the "oppressors" and nobody wants to hear their input, perspective, or opinion. But if white men form an identity group, then everyone assumes it's about racism and sexism. And if a white man self-isolates, then he gets called an incel and a creep.
There's literally no good option available other than to be a self-effacing fly on the wall who passively agrees with everything said by a woman or person of color and never critiques, questions, seeks clarity, nor adds nuance.
Women get "women's spaces," but "men's spaces" are to be deplored. BIPOC get "BIPOC spaces," but "white spaces" are to be abhorred. LGBTQ+ get "queer spaces" but "straight spaces" are to be despised.
And if people say "all spaces are straight white male spaces by default," then why is it unacceptable to boot anyone else out of those spaces? If someone of a different demographic shows up and starts demanding the narrative/vibe/atmosphere shifts to suit their sensibilities, anyone who doesn't comply is seen as a racist/sexist/homophobe. But careful not to walk on too many eggshells, because it's actually offensive to even imply that someone might be easily offended.
Literally the only other option is to hang out in actual racist/sexist/homophobic spaces, which I don't want to do because I detest those types of people. I just want a space where I can hang out and feel welcome and taken seriously while retaining a modicum of self-respect. But this default view of "white man = oppressor (unless gay)" kinda gets in the way of that. And no one cares if I complain about it, or even believes I could have anything worth complaining about.
That's what I mean by "white working class men are being excluded from class solidarity." Maybe don't force them into racially homogenous echo chambers and movements like trumpism won't gain any momentum?