I think a more interesting question is why would a boy want to be in a peer organization that condemns something that you consider integral to who you are.
Because gender identity, sexual preference and activities enjoyed are not all neatly one package.
I know celibate homosexual men who are very masculine in appearance, voice, mannerisms and dress and enjoy what our culture defines as masculine activities such as most anything out of doors, hunting, fishing, football and all the rest. I know one having been in the military right out of high school for four years and is now mid level management having earned a BS in Business.
I know celibate homosexual men who are not masculine and are not overly fond of what our culture defines as masculine activites and like reading, writing, and art. The man I know is a well respected tailor and very sought after by attorneys, doctors and businessmen for his ability to make their suits fit them properly off the rack or make them a suit.
So it’s very likely that a boy can be ‘masculine’ in his mannerisms, but have a homosexual or pre-homosexual identity and like and want to do the activities scouting offers.
Boys being non masculine may or may not like or want to do the activities scouting offers.
Some boys struggling with a homosexual or pre homosexual identity masculine or non masculine may see the scouts as a way to be one of the boys, one of the guys and this could prevent an adult homosexual identity.
The US military has been used for decades for masculine men struggling with a homosexual identity and liking the kinds of physical activites the military requires as a therapy ground to be one of the guys and have resolved their SSA issues and married and fathered children.
Gays boys in the scouts can go either way (can prevent an adult from havng SSA or not) and it IS an experiment. But not any scout is permitted sexual contact and scouting has been providing therapy for wayward boys for many decades. The boy smoking or drinking or fighting or calling his teachers names and many other behaviors.
More than one time in my local elementary school and middle school a guidance counselor, teacher or principal has called the local scouts, told them about the boy and then called mom or mom and dad and asked if a guy from scouts could call or stop in and talk to them about what all scouting offers and maybe little Johny might want to join.
The BSA has been a therapy group for a very, very long time for some boys. I think they can handle this new inclusion of gay boys. And if it doesn’t work out they will simply vote again and not permit them in.
Last time I heard it wasn’t contagious.