I love Chabad because they are yidden, and I love all yidden, because that is a mitzvah (V’Ahavta). Just as I keep shabbos, kashrus and ad dlo yada – I also keep V’Ahavta l’rayacha lo’mocha.
Anyone that b’shita does not love ANY yidden is simply not frum (= not a shomer mitzvos).
Yes we make jokes about yekkas, and Telzers, and Chaim Berliners, and Briskers (don’t get me started on Brisker jokes) and Chabad, and Breslov…but it is only good humored fun (just as we might make fun of ourselves) without any viciousness or hatred.
Yidden are like my cholent – there are potatoes, beans, barley, meat, onions and all my secret ingredients. We need each ingredient to make the cholent and if one is removed, the cholent won’t be what it should.
The beans in the cholent might make fun of the potatoes, and the meat might think that he is the “real” cholent and the onion is not part of the Cholent Tzibbur, but that is pure silliness.
So if you are the barley or the spice – without the rest of us you do not make the Tzibbur of Klal Yisroel.