Not sure whether this is meant seriously.
You could of course also let Bayern start every single match 0:3 down.
The only thing you will achieve this way is to make Bayern worse without improving the other teams.
Also when was the last time Bayern sign top talents playing in the Bundesliga? Bar Upamecano there was nobody.
Havartz, Werner, Sancho, Haaland, Aubameyang all went to the EPL.
Kimmich, Gnabry, Goretzka, Upamencano.
My suggestion wasn’t a suggestion to implement. What I suggested is much better for German football than letting the 50+1 principle die though. Honestly, the league is better without charlatans being let in.
However, if Bayern were actually banned from buying from German teams, AND had to field a crazy number of Germans, they’d still challenge. They’ve got a great academy. They’d do alright. The other teams have a decade advantage to even up the league.
I appreciate its properly nutty. But people often look at solutions that won’t have any impact. (Your suggestion of making them start games 3-0 is just silly).
There really wouldn’t be anything wrong with having 10 years of titles with an asterisk. The game should be protected. Even if a single team loses a little. Bayern are a wonderful club. Great culture. Great stadium. But they’re a monopoly and German football suffers for it.
Having said all that, not all leagues need to be the same. The national side does well too. Different strokes for different folks.
Edit : I’m an idiot who forgot where Leipzig are located. The name is too German. Feel free to ridicule my mistake.