Being consistently rational includes being an atheist—right. Next, the most forceful atheists are heretics who cling to demons or aliens—plausible as this has also been propagated by theists for centuries. Therefore pagans worshipping the devil consider themselves rational, though they are the most irrational of all.
Just an other example. Rationalists favour Darwinian evolutionary theory. The most fervent proponents bitterly fight creationism and any other deviations thereby denying that some thousand years ago the idea that the world has been created was a great achievement compared to what existed before, and they also deny that Dawins’s theory already became out-dated, and in doing so they deny evolution of human thoughts and ideas—an irrational position again.
Conclusion. Being rational is the attitude to permanently question the own position in the light of new evidence and to be tolerant of other people’s believes even if they are not. It is being like Jesus has been some 2000 years ago. Oh, I know it appears to be a blaspheming position to all faithful though irrational rationalists.