Please show me any religion that DOESN'T preach you'll be with your loved ones after death?
Mormons do not have a monopoly on the afterlife in fact they are the ONLY religion that segregates it.
ONLY Mormons who believe in layered heaven. There is no other religion that DOESN'T believe they will be together in the imaginary afterlife.
As far as I know the Mormon church is the ONLY "Church" that teaches that you won't be with your loved ones in heaven if you don't pay your super VIP TAX (tithing) to get into Super VIP Mormon Heaven.
Every other Christian religion teaches that you'll be with your family and friends in Heaven.