It is pulled out of his butt, the F150 sells 3/4 of a million a year (just the f150!) and makes on the low end a gross profit of $10k per sold. The model x sold about 7.5k cars in 2021, way down from the 20-30k it was selling each year.
OK let's say it sold $30k, and Tesla made a profit of $100k (more than the car sells for) for each car.
That's still less than 50% of the F150 yearly profit. LOL.