I can find no fault in the Christ of the Gospels. I can find plenty of fault with all the Christian churches, because those are man made institutions; the hierarchy of all those churches are no better and no worse imo than the Scribes and Pharisees Jesus criticised for hypocrisy. The best of them, like the current Pope, will see this in themselves and strive to correct it.
But why all the emphasis on pointing out to others, where their belief system is wrong? Why look for the negative all the time?
When it comes to other faiths, I am interested only in what they have to offer, and what I can learn from them. I have no interest in telling a Hindu or a Jew where I think they are going wrong; there are aspects of Hindu nationalism in India, and of Israeli treatment of Palestinian Arabs, which I find disturbing. But to attack the Hindu or Jewish faiths on the basis of the behaviour of some adherents, would constitute appallingly ignorant behaviour on my part.