Cutting the crap...
These days we can simplify things by merely arguing about
Evolution?
or
Creation?
and then using scientific and/or technical argument to just trash the latter.
What is so very difficult to do, is to trash the idea, that people cannot have really good morals if they are atheists.
This latter argument, is the one where you almost have to fight the government of the day to win the argument conclusively and then get religion chucked out in the trash. Now this is just about impossible to do, because no electable politician will ever distance himself from the religious (and thus moral) section of his voters.
Any politician who says he is an atheist, thus indirectly tells his voters he is, almost by definition, morally corrupt.
And of course, governments also like churches because they are the only ones doing anything at all so as to maintain any kind of a good morality about the place.
IMHO, if we do ever manage to get rid of religion, then we need to put something back in its place to teach and reaffirm good morality to the masses.
And I don't think 'school is the place' to do this. IMHO, I think we need some kind of 'Life and How to Live It' plan - almost a sorta kinda 'National Creed for Every Citizen'. This would then act as the perfect substitute for 'the good stuff' that religion actually does provide.
Having eventually got rid of religion, the currently very important religious concept, that 'life begins when you die' nonsense can also be trashed. Then we might have some much better chance that people would begin to respect the rights of individuals much more and behave better towards themselves as well as towards others.
I would like the government of the day to absolutely state, 'There is definitely not any kind of an entity called God. We are now sure that life evolved out of nothing and was not created by some kind of mystic being'.
Of course, Einstein and his chums and forbears, the Hadron Collider and particularly, the 'Grand Theory of Everything' has a great part to play in all of this task.
But importantly, we cannot remove something, that is so important for people, without devising what else we can put back in its place.
(And of course, we mustn't forget how resistant all those religious leaders are going to be too.)