Moral Dillema of sorts

Michael/Mordechai Yisrael wrote in weirdjews2: Moral Dillema of sorts: As some of you may know, I'm having some Lubavitch related issues right now. Before I considered these mostly remote from my community..but then I went to one of the rabbis' homes on Purim. I noticed that besides having "Beis Moshiach" magazines, which containe the line "Long Live Our Master, Our Teacher, and Our Rebbe, King Messiah Forever and Ever!" on the cover, he had a tambourine on his wall with the exact same phrase scrawled on it in Hebrew, although it also seemed to have the word "boreinu" written on there as well. If this wasn't enough, one of the visiting (Chabad) yeshiva students started singing "yechi".

I'm...shocked to say the least and completly unsure of whether or not I can trust anything this man says in regards to Halacha or Yiddishkeit. I feel compelled to leave this shul for the new Modern Orthodox one, but I also don't want to "bite the hand" that fed me, since these people did sort of set up my appointment with the Beit Din and vouched for me. Everyone else in the community just pretends it isn't an issue or that if they ignore it, then it'll go away.
So nu, any advice?