I was done with this thread, as I dont feel like arguing about this any more then I already have, but you clearly are commited, going by the spamm of comments, so I am willing to give you are response too:
"Hochdeutsch" or "Standard German" is a concept that finds its roots in the 1800s to find a way of common exchange between all german speaking provinces. This is comparetivly late when compared to other states, like England, France etc. This goes in line with Germany as a whole, as it is, like explained a lot here, a very young state.
What does that mean though? Well finding a common language this late, combined with the ever changing borders of Germany over the years, regional dialects still hold high relevance and are often spoken over "Hochdeutsch" in the public, especially under the older folk. This results imo in a very weird dynamic between states, as some parts (parts of bavaria come to mind here), straight up refuse to use Hochdeutsch often, at least when being spoken too. So there goes that common ground. This is exactly what I mean when I say there is a lack of unified national thought. Our borders and ideals have changed so much in so little time, that there was no time to establish a base of some sort. I have yet to find someone, that tells me a part of german culture which you can find in any state, that isnt religion.
But I wont respond to this anymore, as I feel like I have made my point pretty clear. Have a good day