I don't think the OP meant to discount opinions of "anyone that disagrees with him" but rather to discount the opinions based in supernatural.
It also doesn't seem to me that the OP is really interested in "forced reeducation" but rather reducing influence - probably through ridicule, deplatforming or similar actions.
Atheism is more valid though and there is an abundance of proof.
From biology we know there is no life after death which disproves most religions. From experiments we also know that praying doesn't affect physical world. None of the known miracles couod have been reproduced under controlled conditions which makes it likely they are all made up or hallucinated.