This is a problem around designing it around 24v24v24, it's incredibly saturated, and more often than not you get people in there that either play lethargically, or play to do kill stomping (e.g., don't care about win/loss, but about kill count for achievement)
Whilst it is annoying -- This is a horrible solution, and all it will do in the long run is lend itself to being a more toxic environment than it already is, tbh.
Trying to enforce this is an incredibly bad decision, again, just on saturation alone.