Toriye
Sheekhaagu waa kuma?
This is the finding of the study, "no conclusive degree to which nature or nurture influenced how a gay or lesbian person behaves." So basically they don't know.Being Gay isn't genetic, there have been many studies on this, see here;
https://www.bbc.com/news/health-49484490
There is no "gay gene", and I have serious doubts about it being a choice, seeing as there are no benefits and all people face is being ostracized and discriminated against. I think people are just born that way, however.
Here is the summy of that study which doesn't claim to delink genetics from gays
Summary
Studies have indicated that same-sex orientation and behavior has a genetic basis and runs in families, yet specific genetic variants have not been isolated (1). Evidence that sexual orientation has a biological component could shape acceptance and legal protection: 4 to 10% of individuals report ever engaging in same-sex behavior in the United States, so this could affect a sizeable proportion of the population (2). On page 882 of this issue, Ganna et al. (3) report the largest study to date, comprising almost half a million individuals in the United Kingdom and United States, identifying genetic variants associated with same-sex sexual behavior. They provide evidence that genetic variation accounts for a small fraction of same-sex sexual behavior and uncover a relationship to the regulation of the sex hormones testosterone and estrogen as well as sex-specific differences. They also reveal complexity of human sexuality.