Thesis Help: Social Science

I’m writing a thesis and my topic is on “social science and sexuality” I’m having trouble figuring out on controversial topics that I can cover with this topic above. I was thinking of focusing on arguing that homosexuality is mainly conditioned through social forces but I need help to configure it into a thesis statement. Can anyone please help me give an example of a thesis statement pertaining to homosexuality as a cause of social forces? Also if there are any other topics you guys think that I can discuss and that aren’t too broad in nature please let me know.