Secularism has already totally replaced religion in our modern world. People now largely live their entire lives 24/7 without worrying about a God or damnation or sin, pursuing their education and lucrative careers and relationships and cultural interests that now supply all the necessary meaning to their lives. You start spouting your god shit on your average urban street corner and people will quickly regard you as a nutcase. That's the kind of world we now live in. Religion is now largely seen as irrelevant, desperate, bigoted, superstitious and out of place in a universe that functions perfectly well without it. No one is interested in it anymore. There's just so many more interesting things goin on these days that it is essentially dying a long overdue death.