Sasha, it's difficult to have strong views on anything so absurd. Like having strong views on flat-earthism, astrology and the like.
The idea of death is so unattractive that it was inevitable that some people would run away from it and invent the concept of an afterlife. And since such an idea is irrational its only natural home would be within religion.
I have said before that it's the one great delusion about which you can never be disillusioned. You can go through your whole life in the cosy comfort of such a belief and then, when your eyes finally close and you sink into that black nothingness that commonsense tells you will happen, you will have no consciousness left to realise that you had been wrong all the time.
Still if it keeps people happy, there's no harm - though I do feel sorry for people who so dislike this life that they eagerly await 'a better one'.