Examples Cosmetology Institutions, Salons, Axillary Clubs, Sororities, Female lead or focused Businesses.
Incel – Incels are members of an online subculture who define themselves as unable to find a romantic or sexual partner despite desiring one, a state they describe as inceldom. Self-identified incels are largely white and are almost exclusively male heterosexuals. The term is a portmanteau of “involuntary celibates”. Wikipedia
Known Attacks Committed By Incels:

https://www.bbc.com/news/world-us-canada-43892189

https://www.smh.com.au/world/north-america/another-incel-shooter-yoga-studio-killer-wanted-to-crucify-american-whores-20181104-p50dvv.html

“the next mass shooter.” Jan, 22nd 2019.
https://www.thedailybeast.com/angry-virgin-christopher-cleary-threatened-to-kill-as-many-girls-as-i-see-near-womens-march