I've worked for one of Europe's oldest and established airlines for well over a decade.
When I started in the mid-nineties as cabin crew (one out of approx 8.000 cc) I was one of the few straight male flight attendants.
Over the years it shifted and more and more straight guys joined the airline because it was a well paid, fun way of seeing the world.
We also employed gay captains, co-pilots, flight engineers etc, no big deal.
Later on I moved to private/corporate ops as freelance cc.
Albeit also somewhat of a macho culture, trust me, there are numerous gay people driving Challengers, Globals and Falcons.
To me the gay thing doesn't change anything, it is just more commonly found in specific lines of work.
As long as you do well what you are paid for and respect your collegues I don't give a f*ck about your sexual preferences....