Church vision has never been the same since the church accepted the plea of a newly believing Caesar to help him govern a difficult territory.
This was the stellar opportunity for the church to say the kingdom of God is not the kingdom of earth nor can it be until the Savior returns. They will be tickled to evangelize wherever it is allowed, but will not try to take a land under their wing en masse.
But the church didn’t; it got “practical” i.e. worldly.
This attitude colors the Vatican attitude today. It feels it has to pontificate to the world on how to be a better world. God is not interested in a better world that has no particular evangelical interest. This better world is going to die and be replaced.
I agree in part but going too far in that direction borders on Islamic.