Fair enough.
I was simply putting certain blanket statements into question.
Such statements are often easily falsified. A good rule to observe: Almost never use "never," and almost always avoid using "always."
In the case of the girl, a drawn gun seemed a bit OTT, but then the officer's resignation at least showed it was not contested.
The cop did not draw his sidearm because of the girl. He drew it in response to being rushed by a boy who rapidly charged him from his right side while he was bent over in the process of detaining the girl. The cop never pointed his gun at anyone. I'll defer to TXans, but I doubt drawing his weapon was illegal, but it may well have violated departmental policy. However, whether it was a proper reaction to being rushed or not depends entirely on the cop's perception, and I saw no need for him to lose his job.
The boy who provoked the weapon being drawn offered a defense -- that his friend pushed him twice while running downhill. Perhaps that was a hill by TX standards, but I live near a montaine area, so it looked flat to me. I did see his friend contact him twice during the approach, but apparently without much force. Regardless, the cop would have had no way of knowing anything but that he was being rushed from his blind side.
I encourage you to find videos of the incident and watch them and analyze them carefully. It seems you, and most folks, fell hook, line, and sinker for the anti-cop, anti-gun grievance industry rabble rouser version of the story.
I'm well aware that my government is not my friend, but I'm not going to hang a cop out for doing his job under tough conditions.