I do not know much about other religions so it's hard to say whether they are in decline or not. Islam is growing from what I have heard, can not say for sure. As for Christianity it's on the decline in the US but, I believe it's those who do not take it seriously and if this is so then there will be less ambiguity in Christianity making it stronger but, with fewer people. Christianity is growing in many parts of the world, I've been told that there are more Christians in China than people in the US. Christianity has grown so strong in South Korea they have been sending missionaries to the US. Generally when there is truth in a religion they last and last, so many have died out through the centuries but Christianity 2000 years and will last till the end.
God loves those who believe and those who do not and the same goes for me, you have no choice in this matter. That puts the matter of total free will to rest.
