It looks like this organization provides technical training (or collates such learning resources), facilitates professional networking, provides information on job openings, and self-perpetuates by calling for volunteer participation.
Pretty innocuous stuff as far as nonprofits go. You could find this sort of support network probably for any underrepresented demographic in any profession or context-
The American Association for Men in Nursing: https://www.aamn.org
MenTeach, to promote male teachers: https://www.menteach.org
A call for more male childcare workers: https://www.cdacouncil.org/en/published-article/opinion-male...
No idea why such an entity receives this sort of tiresome culture war pushback. This is America, there are organizations for any cause and identity. We have scholarships for left-handed people and Syrians for President Nixon pins (https://www.hakes.com/Auction/ItemDetail/82487/NIXON-28-NATI...). I feel like this is just a unique facet of the culture, where because individualism is so emphasized, people have to find solidarity in specific identities.