Which is his point. Christianity is on the decline because society has let those people assimilate on their own. They did not ban Christianity.
Once you start banning or suppressing an ideology, the people will actually strengthen their beliefs because they have no way to assimilate with their beliefs into a society anymore.
But they don’t do that. They don’t leave religion with their beliefs. If anything the vast majority still in the religion on paper doesn’t even have those beliefs any more.
Which is his point. Christianity is on the decline because society has let those people assimilate on their own. They did not ban Christianity.
Once you start banning or suppressing an ideology, the people will actually strengthen their beliefs because they have no way to assimilate with their beliefs into a society anymore.
But they don’t do that. They don’t leave religion with their beliefs. If anything the vast majority still in the religion on paper doesn’t even have those beliefs any more.