Well homophobic gay guys are a mess and need to work on themselves.
What people seem to forget about the Cluster relationship is that she was "in love" with a man Fantomex. No matter how brief that relationship was its canon and it did happen. And Cluster is the part that she fell "in love" with because his other personas were the obnoxious ones. Which was intriguing and would have been awesome for someone to delve into but the writer Sam Humphries did not execute that correctly at all.
No one ever taps into these stories thats why fans are able to brush it off and say things like it wasnt really there or she's never had those feelings before. Well now we have it on panel. And thats a good thing.
The Rachel/Betsy thing seems super forced to me BUT I can see how they can both be queer coded.
I honestly blame a lot of the male writers for not exploring Betsy more in depth.