Dear J. Kb.
Your faith cannot be destroyed. Faith is something personal, internal and held by your soul. Strangers waiving the flag of the same religion can come do and say things that makes you doubtful, but in the en they really do not have control over what is in your soul unless you let them.
I am a Catholic. If you want to talk about people having issues with faith, come and see us for examples. We have had some great Popes like John Paul II and a really shitty one sitting right now in the Vatican. We had sordid scandals and yet we are still here and a faith because we know we are the Church, not an edifice, not some guy in robes. Our faith is The Holy Church.
In Mathew 16:18, Jesus tells Peter:
And I tell you, you are Peter, and on this rock I will build my church, and the gates of hell shall not prevail against it.
Even for somebody as dense as me when I was a kid trying to stay awake during catechism classes, I understood that Jesus was not speaking literally but founding what’s to come on man, not temples, not organization but the individual and his faith. I found a similar passage from the Torah online:
יִשְׂמַח יִשְׂרָאֵל בְּעוֹשָׂיו פֵּירוּש שֶׁכָּל מִי שֶׁהוּא מִזֶרַע יִשְׂרָאֵל יֵשׁ לוֹ לִשְׂמוֹחַ בְּשִׂמְחַת ה’ אַשֶׁר שָׂשׂ וְשָׂמֵחַ בְּדִירָתוֹ בְּתַּחְתּוֹנִים
“The Jews should rejoice in their Maker. Every Jew should share in G‑d’s joy, who rejoices and is happy in His dwelling in this world.” [Tanya Ch. 33]
Every Jew, no matter what sort of background or learning he has had until now, even until a minute ago, so long as he is a Jew, is a member of the Jewish people; and he should be happy and proud that Hashem has given him the special and greatest mission he could have — to make himself, make his home and make the world around him, a place where G‑d is at home.
And to close with a venial sin: F*** that asshole rabbi. You are the Faith.
PS: I had much stronger words, but I figure this required a delicate touch. That means my Delicate Tank is empty and doe not get refilled till next year.