*Is* the problem here actually with the national organization rather than the local group? There are plenty of Scouts groups around here that don't do the God badge, don't march in parades, and sure as heck don't have a Let's Go Brandon flag in the meeting space. If your problem here is less the Scouts as a whole and more specific things your son's troop is doing, you could shop around for a different Scout group. You might be able to find one led by an anarcho-socialist atheist lesbian these days. There are also multiple groups founded in the past few years by people who wanted a similar experience but without the Boy Scouts' baggage; many of them are still fairly small, so there might not already be one, but most of them would be happy to help you start up a group in your local area.

But the leader of this troop is your kid's friend's parents. LW, if the actual problem is your kid's friend's parents, or if your kid's friend's parent's represent the majority political and religious views in your area, that's a different problem - and one that the Cub Scouts might actually give you a more structured way to talk about with him.

Otherwise, just join the Girl Scouts.