Your parent post didn't claim there was no corruption in German politics. They said that taxi companies were small and disunited, while Uber is large and powerful.
The law in question is on a _federal_ level. It's not a law in Berlin the city, Berlin the state, it's a law in Germany.
Your condescending comments ("Haha, they don't believe in political corruption") are neither on topic nor relevant to the issue at hand. I advice you to stop and rethink your approach here, and maybe gather more facts first. You're just trolling at this point.