You are not wrong, yeah right De Gea chose to resign because the new contract with Manchester United did not suitable with him, the Red Devils cut that player salaries in the new contract they offered. I also suspect that, Bayern Munich seemed not have an interest De Gea, if they were interested maybe we would have seen De Gea at there.
Exactly, Kane transfer fee cannot be used as a reason. If Bayern Munich are serious they can definitely get De Gea although that man's salary is also large, but De Gea will also work optimally at Bayern Munich. Moreover, he has a lot of experience, Bayern Munich will look even more perfect like when Manuel Neuer played for them.
I think the reason maybe Bayern is still hopeful Manuel Neuer can comeback, so Bayern did not recruit an experienced goalkeeper like De Gea.
David De Gea was patient enough and agreed to reduce whatever he gets from Manchester United in other to remain with the club for a season longer but wasn't offered shit by Manchester United.
David De Gea doesn't suits Bayern Munich Criterion. David De Gea might have top potentials with his hands but not same I can day whenever he uses his feets.
The salary and wages of David De Gea can be met by Bayern Munich, they're no small side. When it comes to player management, they're also know to be excellent at that.