The trouble is that for many people it is more likely they will substitute in "Moslem" or "Satanist."
There are always some who cannot be reached. That is just a fact.
Both of which are ridiculous, as I'm sure you agree. When was the last time we saw a Mormon blow himself up in a shopping mall, or a Jew carve a pentagram into someone's flesh?
the comparison would be hyperbolic at best, and ignorant at worst.