This measured response was refreshing in these partisan times, but the fired employee, Natalie Weiss, attacked the coffee shop for abetting the status quo. She acted as if the job of a coffee shop is not to serve customers, but to push liberal political activism.
She could always go to work for Google, or Twitter, or Facebook. They would be glad to have her because that's exactly what they think. They could hire her for a 'content review' (censorship) job. She would fit right in.
But it is true that being a Liberal is not a guarantee that you will not be attacked by SJWs. Being Liberal is not a shield from them. SJWs attack Liberals all the time for not being "Liberal enough". If you are not foaming at the mouth, you are not doing it right.