Why is law enforcement so weak in Texas?

It baffles me that every time we have an active shooter, police wait outside for hours to wait for tactical teams. As a former US Infantry Marine, I find this weak. You have uniformed officers with Kevlar and AR-15s. The uniformed officers got shot at, and they retreated and refused to reengage? What in the actual fuck? What kind of spineless chain of command operates in this way?
Why is law enforcement so weak in Texas?
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