The numbers miss a key aspect - risk management
Landlords do whatever the hell they like with zero consequences. Thats not a game I’d like to play with a 40 year horizon of unknowns.
With a mortgage the risk is interest rates. And on that I’m confident I can carry far more exposure than my peers. So if that blows up in my face then the entire country’s financial system is cooked anyway
And that’s why we have rent control.