The Blasphemy Challenge

Reincarnation is not a dogma of Buddhism, it just exists in many areas where people believed in it before it was there. Karma is Hindu.
Nirvana is not dogma, just an idea. There is no dogma for the afterlife, some sects teach it, but they are, again, basing their beliefs on previous religions (Tibet- Bon).
Read the Suttas before you speak... Dictionaries also call atheism a religion, as do governments.
Buddhism has no set dogma other than the diagnosis of pain and the ending of suffering, everything else is up to the individual.
If you want to call that a religion, fine, so is medicine.

We do not need evangelism, that is what bookstores and Internet searches are for.