Honestly, these kinds of khutbahs need to be the mainstream if Muslim communities are going to effectively integrate with communities in the West. It shouldn't be marginalized to little mom and pop congregations (no offense) while bigger mainstream mosques are run by insular muftis with particular agendas. That mainstream should be the shunned and marginalized view, and truly progressive views ought to be at the forefront and highlighted. How to get there however, is a question I don't have an answer to.
You hit the nail in the head asbie., That is a HUGE problem in Islam., it is hard and even impossible to play double game in Islam unlike with Christian faith heads or Jewish faith heads . the other problem is number game., The rato of number of nominal folks who just follow some festivals of their respective religions vs faith heads that adhere to bookish rules of religion., Islamic faith heads beat other religious faith heads by a huge margin.
The thing is, it's really a shame that we as ex-Muslims have had to completely bail and ditch the community of Islam all together because our views are so fringe. There are plenty of agnostic/atheist people of Jewish or Christian heritage that have no problems claiming affinity to the only spiritual identity they've ever known. .................
The problem lies with the heritage(stories) of Christ verses heritage/stories of Muhammad. To some extent one can make Islam look better by deleting all that hadith and abolishing those sharia laws or apostasy laws. And that is what that Mustafa Kemal Atatürk tried and succeeded to extent in Turkey.