Metrorail security beating a tiny young woman!

I am shocked and still shaking to say the least I screamed and shouted for them to stop but I couldn't even get off the train to help. Yes its wrong to get into 1st Class with a 3rd class ticket. But when that security sstarted pushing that young lady roughly first her scarf fell as she picked it up she started tearing up and pushed back out of defense and frustration. This lady was so tiny compared to these securities yet the one colleague did nothing to stop his fellow colleague from throwing punches at this lady. You could see she was well dressed probably for work. This has to stop this is the second time I've seen security on the trains resorting to violence the first being a 13 year old boy standing holding doors open then I'm guessing it was partly because of the alcohol they reeked of. I'm not condoning breaking train laws which are visible in every corner. This is no way to treat your passengers. I nolonger feel safe as a customer and I feel nervous whenever I see those yellow vests just wondering who is going to be the next victim.