There is no denying that many christians and muslims have a sectarian narrow-minded outlook because their way of thinking is not tantric or mystic enough.
However, there are also many so-called hindu or buddhist type of religious folk whose outlook is just as narrow-minded and focussed more on asking for personal boons rather than on growing spiritually.
I agree, but in both cases they are small minorities. I've only met a couple of narrow-minded Hindus, and have never met a mystic orientated Christian. There are exceptions, in all cases. The early swamis who came west felt they had to adapt the teachings somewhat, else they would have no audience at all, and I think that's where most of this comes from. Swamis who stay in village India remain staunchly Hindu, for the most part. Yogananda really comes to mind. Many westerners who encounter our traditions simply cannot drop Christ, of all versions. The subconscious mind is a powerful force.