Yes this seems racist, but the ticket controllers with an aggressive, violent bully attitude in berlin are a real thing. These are mostly kids of Turkish and Arabic immigrant workers. Nobody in their right mind is arguing that this is a genetic predisposition. The discrimination and lack of opportunities in our country play a major part that these kids wanna be gangsters. But we also cannot ignore the fucked up patriarchal culture they grew up in. On that note you also have to realize that the people migrating from these countries back in the day were mostly workers, not intellectuals. Then of course there is also the idiotic local traffic authority, that put these delinquents in a position of power. In the end I think this is mostly a homemade problem, but we also shouldn't bullshit ourselves out of fear of seeming racist.

He's racist :)

The typical everyday racism that is directed against black people in the USA is largely directed against Arab or North African people in Germany. Imagine he had said that black people are incapable of adequately checking tickets.

The people responsible for checking tickets of the passengers. Their culture, patience, and refinement oftentimes is inadequate towards commuters who simply left the electronic card of paper ticket back home.

He meant I think that the ticket controllers were often Turkish and Arabic punks. Which bit of that did you not understand? He could have just as easily said they were often northern European punks if they had been. Would that have been better or worse in your opinion? Racism is wrong. Political correctness is just as bad...