I agree that the US should not have dropped atomic weapons on Japan in WWII.
However, I also have disputes with the revisionists. Most of them assume the US had perfect knowledge of the deliberations inside the Japanese government, the imperial mindset, and that we knew the disposition and the intentions of the Soviet forces. Furthermore, they assume the US had perfect forecasting capability for their own ability to prosecute a fight into Japanese territory.
None of this is true. War is a cloud of chaos where little is known and much is assumed, usually incorrectly. The revisionists seem to miss this completely because they are academics and have never experienced military life of any kind, much less combat.