If you start a business, politics impact you. If you are an employee, politics impact you. If you invest in businesses, politics impact you in a huge way.
Uber and AirBnB are no longer just startups, they are very politically active corporations. But they both started, if not from here, then from other communities just like this one.
That's another reason why it should be banned, because it will crowd out other topics by dint of being more important to more people - which is also a feedback loop, as more people get drawn in for the politics.