That's quite a remarkable statement to make, considering that there is no doubt whatsoever that the New Testament makes numerous references to the people who were called, and what was required in order to be eligible for a call; and there is no evidence of them having to be Hebrews of the tribe of Levi from which the Jewish priests who came prior to Christ's establishment of his own church were chosen.
We're not talking about politics or political
citizenship here. And it is as obvious as anything can be that ours is a God who, as shown throughout the Bible, chose certain people, at his discretion, for certain roles and did not choose others. He also had an entire "chosen race," so shall we consider the Almighty to be unfair for doing so??
This is also not about anyone's
ability to perform the duties of a priest, pastor, bishop, or etc.
And this IS about the the clergy, about ordination, NOT about other regulations that might apply to all members of the church, clergy or laity.
Unless doing so clashes with the current socio-political trends of nation, I think you mean.