This question could also be framed as why don't you date women over men? Regardless if you're happy in your current situation or not.

articles like this claim that women have a more fluid sexuality than men do so probably have a higher ability to engage in same sex romantic relationships than men can. If it is true why do women continue to date men despite having endless issues with dating men?

Women can provide most of what men can provide in sex or relationships (outside of obvious things like dick). Women can provide sexual pleasure, validation, company, emotional connection, teamwork, money/resources. Plus since we find women more pleasing to look at than men (generally speaking) they're more attractive too.

So what do men have to offer that women don't?