hornton's employer, property management company Tribeca-STL, says it found the interaction 'disturbing' and terminated her employment for racial profiling.
Her claim, unrefuted by anybody, is that the man didn't have the key to get through the main gate. That isn't "racial profiling", they have zero evidence she would have let a white person through without a key.
All they have is a possibly selectively edited video from the guy who is complaining.
Meanwhile, her claim is that he physically pushed her to get past a locked door that he did not have a key for.
I presume that the apartment complex has a system for handling people who lose their outdoor key, and it doesn't involve trying to push past others who just opened the door.
Where did you get the idea that he did not have a key to access the building?
The employing broker was up between a rock and a hard place. He could get sanctions up to and including a license revocation if he permitted someone committing a discriminatory act remain on staff. Few are likely to take that risk.