As a Bavarian: Yes absolutely. It’s not like I hate my fellow Germans but from a cultural and historic standpoint, this makes sense.
I think it would get a majority in Bavaria and if Germany wants us to go too. Let’s go!
To be fair, I have never been to Bavaria, but the few interactions I had with Bavarians weren't painting a positive picture. I worked in a theme park in northern Germany on the weekends while I was still in school and my friendly "moin." was answered with a "Das heisst servus, Junge!". Maybe they were just drunk, though. So no bad blood to my southern friends. My previous comment should be taken as friendly banter.
The francs are pretty chill tho. If your immediate reply to being called Bavarian is to distance yourself from that term you have my respect. If we defederate Bavaria they can stay. It would be only fair if Bavaria has to take Thuringia and Saxony tho and integrate those int the new Bavaria/Austria state.