The core tenet of communism is that no one has a right to property, all property is communal. If you don’t own anything then you don’t have a right to defend it. BLM is a communist front organization so it makes sense that they’d want to push encounters like these and have leftist courts prosecute people for defending their property, thereby weakening property rights.

Once the courts have weakened the right to own and defend property then it’s a step towards making it easier to confiscate. At its core this BLM/Antifa BS is about wealth transfer, they want your stuff is what it boils down to.