"Ausländer Raus" chant, what is your opinion?

Dear all,

I would like to share an incident that happened to us last Friday. As I do not know how these things work in Germany and as the incident happened in Dresden, I am writing in this subreddit.

Me and my partner were waiting for a tram at the flixbus counter near HBF on friday evening We were in the city to experience the neustadt night life. Some drunk teenagers and young persons ( age could be anywhere between 16 to 25) got off at the opposite tram stop. Immediately, they started singing the "Ausländer Raus" song, pointing their beer bottles towards us. There Were other people at the tram stop too, but we were the only "Ausländer looking" persons there. Nobody seemed to care, as the young group continued chanting for nearly five minutes till we got on our tram.

We were pretty dumbfounded by this incident. I thought of taking a secret video but then I remembered the strict privacy laws in Germany.

Obviously our night was ruined. This left my partner crying and as she has high anxiety and asthma, she suffered asthma attacks afterwards for several hours. We felt like shit. We do not even live in Dresden, we came to visit this beautiful city and this happened.

I have been living legally in Germany since six years. I studied here, felt always welcomed and decided to raise my family here.

I get it that these are probably some random drunk teenagers trying to be cool infront of their friends. But what should I do if this happens next time. Should I just take a secret video and go to police? What do you Dresdeners think?