there is no certificate higher than C2, so "minimum" C2 is ridicerlus, ackchyually...

I assume.thats your point here, but to bystanders: C2 is nearly native speaker language proficiency, nuanced, precise, eloquent.

if language production is the job, or impeccable understanding is a must have, like as a psychotherapist, then C2 is a reasonable requirement.

in contrast you can study in german language at a German university with C1 proficiency already.

Germans just love to exclude others based on their 'master race' sentiment - I have had this happen to others in my vicinity, so that's why I know it's not a personal grievance thing.

I had a friend rejected from a job (she was not German but lived in Germany, and spoke the language), as the recruiter told her they are looking only for people from DACH countries becase of some 'data protection laws' that can be enforced there. Since the job was remote, they argued, she could move out of the country at any point in time so she would not be eligible.

(I know this because I had another acquaintance who worked there)

C2 is better than the language proficiency of the median native speaker.

A C2 speaker is comparable to a highly educated native speaker with a master degree who reads regularly.