on the ball-
You must be joking. Start with Ramban, Rambam Rashi just to name 3. These rishonim had professions and learned. No rishon says everybody should sit in yeshiva whether they are REALLY learning or not. Maybe only an elite few the Rambam says could spend all their time learning. But certainly nothing like we are seeing now.
And you still didnt answer my question: 1 rishon that says everybody should be learning and not working.