Some of the opinions above remind me of the reason a Chasida is a Treif bird. She’Oseh Chesed Im Mineha -performs Chesed for her own kind. This somehow doesnt mesh with Kol Yisroel Chaverim.
Allow me to quote a post on rabbihorowitz.com that came up on a search for the Chasida bird:
Talmud Yerushalmi Yuma 4b and Talmud Bavli Yuma 9b together state that the roof of the First Temple was destroyed and we were exiled for 70 years for the sins of murder, incest, and idol worship. During the Second Temple, even though the Jews were diligent in the study of Torah, were zealous in the keeping of the mitzvos, and the Jews had fine manners (or were practicers of kindness), the Temple was destroyed to its utter foundation (“Strip her, strip her to her utter foundations” Ps.137:7) and we are exiled for over a thousand years, solely because of the sin of causeless hatred.
One has to wonder, how could they have been practicers of kindness, well mannered, yet at the same time be guilty of Sinas Chinam?
Remember that Chazal has taught us that “Anyone who lives in a generation that the Temple does not exist in, it is as if it was destroyed in their generation. Look around us and see people who perform unbelievable acts of kindness and are well mannered…to their own kind, like the treif “Chasida” bird. Yet hateful and cruel to those who are not of their kind.
It is this very lack of respect for others, lack of tolerance for those different, combined with the misplaced haughtiness of sadly mistaken self-righteousness, that is the very cause of the destruction of our holy Bais Hamikdash and the repeated destruction of our very communities.
Enough is enough. Klall Yisroel needs to focus first and foremost on learning the halachos of mitzvos Bein Adam L’Chaveiro and then start practicing chumros in Bein Adam L’Chaveiro. For this is where our true weakness has been ever since the first nuclear Jewish family, the sale of Yosef by his own brothers. This is the breach that needs to be repaired first.