It stands to reason then that The Church should always oppose the efforts of ecclesial groups to gain adherents in lands where The Faith of The Church is The Faith of the nation, as in Poland or Ireland or Italy or Greece or Serbia or Russia.
I'd say our best efforts, though, will be in evangelizing our own members, if one can use the word that way. (I guess we find in Paul the evangelizing of the Baptized, so I guess it's okay.)
I do believe that any group has the right to serve its own people wherever they are so long as its teachings and practices are not contrary to the good order of society.
And I think there is a kind of crypto-evangelism in the laudable enterprise of "outdoing one another in good works".
I am not commending, and do not want to be thought of as commending the groups that come into some place with the mission of converting Orthodox or Catholic Xtians. But hey're gonna do it. You see what they say about us. They think they're doing God's will and saving people from our clutches. But as I say, right now when I talk to this OINO, we have almost nothing to say to one another. (I'm remembering also a wool customer and nice dutiful Catholic who wrote me one day and told me she'd just found out that God loved her. I was kind of non-plussed, as you can imagine. I wondered what it was we'd been talking about ...) I think he'd at least be bracketing the mark if he one day gave Himself to Jesus. Then maybe he could sharpen his aim even more and find out what is in the Church he currently neglects.
There's no "h" in Greek, MD. "Αμαρτια"