Yes/Yes (Atheism is the objective truth, and its important morally that people not be allowed to mislead others with religious promises that can never be kept)
Simple minded take. Such a disingenuous and stupid use of “objective.”
By the very nature of the debate, one could literally never prove atheism as “truth.” No matter what side of this eternal question you land on, it IS simply your guess that you’re making without all necessary information. Smart, well-adjusted and functionally interpersonal people on both sides get that.