Jeremy Renner is gay, or at the very least bi-sexual. And I do believe that half of Hollywood is gay. Think back to the drama class in high school. What percentage of boys were 100% straight there?. Not that many, no more than 30%. Now extrapolate that to an industry.
There are businesses that have critical mass of certain types of people, for whatever reason, and industries like Hollywood, hairdressing, fashion and other looks-based industries have a very high proportion of homosexuals in them.
Hollywood establishment like David Geffen, Scott Rudin, Bryan Singer and so many others are gay and the presence of the casting couch is applicable to both male and female wannabe actors...yet despite that presence of gay power-brokers, the entire industry is vested in ensuring that leading men don't have a whiff of gayness about them. Why?. Fantasy.
Hollywood is in the business of selling fantasies. Recall Athlone's great article on
why famous men are outspoken feminists...this key passage also applies as to why actors, especially those who aspire to leading men status, do not openly come out of the closet:
"These female fanbases consist of young (usually anywhere from 12-25) women who are, more often than not, quite insecure. Their fandom is often based heavily on the maintenance of a mental “relationship” with the celebrity: they may never date him, but they like to maintain the fantasy that they could someday and often place themselves in that position in their own hearts and minds. The maintenance of that relationship is the key to his celebrity: it is what keeps these girls going to his premiers, buying tickets to his shows, subscribing to every one of his social media accounts and snapping up every song he makes on iTunes."
Athlone applied this to women under 25, but extrapolate that to all women.
Even though now in the age of the Internet, big cracks are appearing where stars' true orientation is concerned, you will still have guys like Tom Cruise, John Travolta, George Clooney, Hugh Jackman and so many other leading type men vociferously deny, deny, deny any hint of gayness cause that would kill their careers dead.