Atheists attack Christianity, and not other religions, because they already know God exists and who He is.
Their irrational anger and hatred is evidence that they know God exists.
Why would anyone be angry at a Being who doesn't exist?
They demand proof when it is literally right in front of them.
The other evidence is that they accept abiogenesis and macroevolution without ever questioning it. Even though there is no evidence for abiogenesis or macroevolution.
Why do they never question abiogenesis and macroevolution?
Because they are the pillars upon which their delusion depends on.
They are already living a lie to begin with, so a few more can't hurt; especially if they support their position, even without evidence.
What a terrible existence for them, is there any wonder they are so angry?