You know what is funny, people who subscribe to the first four reasons are usually incapable of calling themselves as atheist. Instead they claim that they are simply unreligious or disassociate themselves with religious groups. They build a religious persona as suit they wear in public.
That is why when a someone asserts that those four is YOUR reason to be an atheist, it is really a projection of their own doubts. Their current faith is derived from contending with those reason. It is offensive for them if these things are questioned, because that is equivalent to stripping off their clothes in public.