1 Peter 2:9
9 But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light.
If they are sincere enough and profoundly devoted to serve GOD then why not,
They did not chose in becoming a part of the third *** they were born with it and it would be irrational to judge them whilst on the other hand we are not the right entity to judge them as well.