You can question it all you want. And maybe in your experience that has occurred. But you what- you don't know everyone who has moved away from the anabaptist church denomination and culture for want of better words. They are committed to living a nonresistant life and even have been active is showing others what this is. Many have never considered it, never experienced or even heard of this and they have been vessels that have opened their minds to this idea. And not everyone who goes to another church type believes in political involvement, using guns and military service/involvement. And I am seeing many conservative anabaptist who are quite politically involved- at least verbally. Things are not all black and white was you seem to feel when it comes to leaving the conservative church. Maybe in your experience but then again you came to this when you were an adult. Most of these folks left after growing up in this setting and were adults with families and feel there may be a better way to express their faith/live out their faith and not be so insular.I really question how much someone is a "committed believer" once they started attending a church which promotes things like military service, voting, political involvement, carrying guns, etc.
I am not expecting you to change your mind but just letting you know there are many people out there who have not followed the path you like to say they will.