The way I approach the issue raised by the original poster, the key question I have to answer for myself is what, if anything, do I propose to do about something I disagree with?
There are clearly many things beyond my capability as an individual to change. I cannot, for example, change another person’s deeply held convictions, though I can can certainly engage a willing person in discussion. The end result may very be that I’ll change my mind rather than that of the other person.
I certainly cannot expect to – nor would I attempt to – radically alter the beliefs of an entire community that is earnestly following the teachings of their rebbe, who was widely considered to be a talmud chacham and yiras shamayim even among other well-respected talmidei chachamim of his time who disagreed with him on the issues involving “Medinas Yisroel” .
The most I can do is listen to other points of view, lend support (votes, finances, alignment) with those figures who offer views I find compelling and not get overly worked up or fearful of the behavior of other groups unless they engage in violence or other unlawful activities.