shopping: at its root, the problem is one of intolerance. if you believe that zionism was right and there is no way rabbi tietlebaum was right then you come to be intolerant of the other. if you believe rabbi teitlebaum was right and there is no way in the world rav kook was right you come to be intolerant of them. when you start to believe that somehow your group has figured out exactly what hashem wants and that your group has some sort of special connection to gods truth it precludes tolerance of anyone else’s belief. After all, would anyone be tolerant of a view which is opposed by god himself?
some believe that not only does god want everyone to learn (and not work) but to only learn gemuru and not only gemuru but only learn pilpul and not only pilpul but the pilpul my yeshiva espouses (outside in, inside out, brisker, etc) and that everyone else is not doing the right thing because we have the only way – direct from god – because my rosh yeshiva knows what god wants.
when people change their perspective and say “i believe in what i do but i am not foreclosing the possibility that the other maybe is also right” you have tolerance.