Oops. Guide leader with over 20 years experience here. Before becoming a Guider I was a Brownie, Guide, and Young Leader, so around 30 years experience of the organisation.
Guiding is not a Christian organisation, and never has been. Refer back to early handbooks from the 1910's and 1920's and you will see Baden Powell's references to the inclusion of girls from other faiths. In 1910 when Guiding started, almost everyone had some sort of faith - in the UK, most were Christian. It is logical that Guiding followed this pattern. Over the years as people's beliefs and lifestyles have changed, so have the practices of Guiding. It is rare now to have a 'Guides Own' service at camp for example, and it is always voluntary. No Guide or Scout now has to promise to love or serve any God. church parade is usually limited to Remembrance Day (which locally at least is attended by the entire village, every age and religious background) and sometimes St Georges Day or Mother's Day, and again is always voluntary. There are occasional groups which are 'sponsored' by Churches or other religious groups, in the same way that schools are. They are VERY rare - there isn't a single sponsored unit in our whole county. In practice sponsoring means that the group gets to use the church hall for meetings rent free, that is all.
Of course there have been Leaders in both Guiding and Scouting who have done inappropriate things - as in every walk of life there are good people and bad people. The same applies to teachers, nurses, vicars, etc etc etc. they are all police checked and would Not be allowed to become a leader if any conviction was flagged up, or allowed to continue as a leader if they were convicted after the police check was done. I do not believe that any leader would make comments about young boys in short trousers.
Guiding offers a place where girls can enjoy activities from chocolate tasting to campfires, abseiling to baking, first aid to sailing. Girls get the opportunity to travel in the UK and abroad. I can't praise Guiding enough.
With a national waiting list of over 50,000 girls, the only thing we are short of is leaders. People who are prepared to give up their free time voluntarily to run activities for other people's kids, in between managing their own lives, jobs, families.
Instead of posting ill thought out comments on the internet about these people, why not volunteer yourself if you could do so much better?