The current reality is that where I live, dogs and cats run wild everywhere. A lot of effort is put into keeping them off the streets, they are fixed so they can't reproduce, and placed into home environments where they can thrive for the short time that they have. If that isn't possible, they...
I doubt there will be a WW3, much less a "rapture" that "saves" a select few privileged souls. But if people choose to think that highly of themselves, go ahead, and welcome to Satanism.
Should money be kept out of religion altogether? If not, where would you draw the line between funding a religious group and running a business? What systems should be in place to protect people from fraud?
Edit: Should religious organizations be taxed?
Since Satanists (etc) are free to formulate their own moral code, they are also free to apply the concept of "unconditional love" per their own discretion.
The rejection is not of the concept itself, but rather the blind following of a doctrine that may work in some situations (rarely IMO), but...
There is "Mathematical Platonism", which holds the position that mathematical constructs are discovered rather than invented, and is somewhat metaphysical in that regard.