If you were to follow a particular religion...

[Taqiyya Mockingbird]

While one can debate whether the Buddha was agnostic with respect to the doctrines of Karma and Reincarnation…

He made his position on them clear in the Mahacattarisaka sutta and further elucidated in others. His thinking was that such views led one toward ethical behavior, but were ultimately speculative. He did use the principles as teaching tools, leading folks ultimately away from them and toward his own teachings, and most importantly, his practices.

Anatta, well, that is never going to sit well with someone who doesn't want to let go of the notion of a soul.