You're not sure how an alleged racist teacher has anything to do with politics?
Where the hell have you been in the last year?
Racist Libtards are preoccupied with race - PERIOD.
I still fail to see "how" the correlation between teaching and racism is politics. I believe you're able to make that leap because in your mind, politics may be the root of all racism. However, that's not the case. It just so happens that racist people can make a career in politics, just like they can in medicine, law, religion, or any other field. In short, the poster asked a question on teaching and racism, but you immediately grasp at politics as an anecdotal red herring.
I can guarantee you morons that at the very same time that teacher was being called a racist for calling on black students first, some other black students were accusing a teacher of racism for calling on them last.
I've said before, if you're a teacher in regards to racism, you're in a lose/lose situation. You just do your best to ensure that you don't, intentionally, leave anyone behind.
How do I know this? My own children's school. Blacks are always finding racism in everything because it's the mechanism they use when they are failing at life and white Libtards enable them in order to keep their black voting block loyal.
You're using your own personal bias to create generalities. Blacks find racism in everything because of their psyche. They've been taught at an early age that many atrocities will befall them for simply being black. They see it in the news, from their parents, from their friends. It has become so ingrained that it has become a defense mechanism. It's their way of rationalizing the world. Voting block? Blacks barely vote. You've only seen a recent climb just because of the previous president. That number fell sharply in 2016.
If they fail, it's because they're black. If they end of in jail, it's because they're black. If they're successful, it's because they're black e.g. rapper, athlete, token black character on TV or movie. Anyhow, it's their mentality. Notice that the successful blacks do not carry the same mindset (perhaps they did when they were young, but as they succeed, their perception changes.)
When they can see past their own blackness, people who interact with them also see past it.
In short, 200+ years ago, black people where harping on the injustices of being black. 200 year from now, they'll still be harping on the injustices of being black. It's "not" because of politics. It's because of their mentality; it has become who they are.