At Real Madrid I think Mbappe could become a 50+ goals striker.
I agree with your argument. By the way, Lionel Messi is still holding the top scorer record in a season in the La Liga with 50 goals.

https://www.guinnessworldrecords.com/world-records/most-goals-scored-in-a-season-in-the-top-division-of-spanish-footballIt isn't impossible for Mbappe to break this record absolutely. He is a goal machine when he plays under a strong system. Ancelotti can give him exactly what he wants. Real Madrid couldn't have a this productive striker since Benzema left. Now they finally have another great scorer.

Mbappe has different playing style than Benzema too. I think he can be way more useful for Real Madrid in the long run.