Because they didn’t want to
The French were control the area where many Germans and other people spoke in French or know some French. The Russians would control the Eastern part of Germany which they conquered and had more of the Slavic type of people. The Brits and Americans took the rest.
John Locke promoted the idea that people are born with three natural rights. Life, liberty, and property. He felt it was the government’s obligation to protect these rights of the people they govern.
The political followers of Thomas Jefferson took up the name "Democratic-Republicans," preferring this to the term "Anti-Federalists" and advocating for more state power over the power of the central government.