It's not difficult to believe your last paragraph at all. This morning devotion I was brought to James 4
4Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.
I didn't put every American Christian under the same observation, nor was I focused on you. My reference to half the christians is generous as I see most still demonstrate the same friendship with the world as when I was a baby believer. Many have pulled their children out the training camps to be raised at home instead. This is a positive trend. May more follow suit.
However the vast majority make sure their kids are conformed to the image of the world's influences from my limited perspective. You are in a different area, and are exposed to different Christians so YMMV.
I wonder what most Christians would say if asked what form of government they participate in? My guess is they would have no idea and would guess wrong. They wouldn't say a king, but would parrot what they've been told by the devil's influencers.
They still seem to act like the elders in 1 Samuel 8 who wanted a king to rule over them, for some of the same reasons. They got what they inherited and hopefully will get on speaking terms and friendships with our real King Who can take the local, county, and federal "representatives" and bless us rather than using them to punish us.
My observations of the majority of christians may be different from your observations, but I think we agree on the proper purpose and hope for the future.