People who use some Uber service and appreciate it are more likely to speak out to their leaders asking why the law is preventing this useful thing that they have seen, used, and appreciated. Does this help more than it annoys the people who would change things?
Taxi companies exist on a county level in Germany, Uber is global. That's also reflected in cash and revenue and will at some point reflect in lobbying capability.
If anyone in this game is a bully, it's Uber.
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.
However the taxi lobby has argued for years now that the fees they are allowed to charge are too low without gaining any ground. They quite obviously lack any notable influence.