So what?
The Concordat of 1933 was simply an expansion of existing concordats between the Vatican and the German states of Bavaria, Baden, and Prussia. The Vatican had more than a century of concordats behind it at this point (starting with Napoleon in 1814); by the death of Pius XI in 1939 there were 41 separate concordats on the books.
A concordat is nothing more than an attempt to negotiate a legal document to ensure the Church's ability to function lawfully and unmolested with its just liberties intact. Your attempt to portray the 1933 concordat as evidence of sinister Catholic-Nazi complicity is a lie.