When there is "group rejection" it is usually associated with one person, the rejected one does not do or say the things the group likes. There is a "group think" that rejects anyone who is not just like them.
This is becoming more common, the expectations that everyone must think the same way and do the same things in order to be loved is growing because of the last days 2 Timothy mentality.
2 Timothy 3:1-5
1 But realize this, that in the last days difficult ("ragingly insane" is the proper rendering for the word difficult or "perilous") times will come.
2 For people will be lovers of self, lovers of money, boastful, arrogant, slanderers, disobedient to parents, ungrateful, unholy,
3 unloving, irreconcilable, malicious gossips, without self-control, brutal, haters of good,
4 treacherous, reckless, conceited, lovers of pleasure rather than lovers of God,
5 holding to a form of godliness although they have denied its power; avoid such people as these. 6 For among them are those who slip into households and captivate weak women weighed down with sins, led on by various impulses,
7 always learning and never able to come to the knowledge of the truth.
8 Just as Jannes and Jambres opposed Moses, so these men also oppose the truth, men of depraved mind, worthless in regard to the faith.
9 But they will not make further progress; for their foolishness will be obvious to all, just as was that also of Jannes and Jambres."
The more we grow in the Lord, loving Him above everyone and everything else the more we will be rejected by the world.
John 15:18-25
Disciples’ Relation to the World
18 “If the world hates you, you know that it has hated Me before it hated you.
19 If you were of the world, the world would love you as its own; but because you are not of the world, but I chose you out of the world, because of this the world hates you.
20 Remember the word that I said to you, ‘A slave is not greater than his master.’ If they persecuted Me, they will persecute you as well; if they followed My word, they will follow yours also.
21 But all these things they will do to you on account of My Name, because they do not know the One who sent Me.
22 If I had not come and spoken to them, they would not have sin; but now they have no excuse for their sin.
23 The one who hates Me hates My Father also.
24 If I had not done among them the works which no one else did, they would not have sin; but now they have both seen and hated Me and My Father as well. 25 But this has happened so that the word that is written in their Law will be fulfilled: ‘They hated Me for no reason.’"
