[CincyRichieRich]

There will always be exactly as many Christians at any given time as God wants there to be.
........
Not sure where that theology is from, but it isn’t true. He wants everyone, and that is in the Word. If what you say there is true, then free will does not exist. There is no quota system; we are simply told to go, and make disciples of all men (people, nations, ethnos)

[circlecity]

"He wants everyone, and that is in the Word."

If he wanted everyone then everyone would be saved. God is sovereign. God chooses you, you don't chose God.

[circlecity]

"If what you say there is true, then free will does not exist."

We are free to do whatever we want to do but not what we ought to do.