The main thing in this video I find questionable is this.
If he is just a lazy crap cop too stupid to get involved when the woman is being harassed for a quite a long time, then why does he get involved when the brother stepped up to the man to back off? The ignorant man was clearly the most threatening person on the scene, but he only gets involved to de-escalate when the brother defends his sister, and backs the brother down rather than the instigator who is causing the problem to begin with.
Objectively speaking, it is clear that there was more to this encounter than "lazy random cop".