What exactly is the Thin Blue Line bullet glass suggesting?

The Thin Blue Line Pint Glass [Benshot] and the .308 Authentic Solid Copper Projectile Whiskey Rocks Glass Engraved with Blue Line American Flag [Amazon] are items apparently intended to support the authoritarian mode of policing that imagines itself part of the U.S. flag while dividing it in two. But the addition of a bullet embedded into the design looks more like a violent suggestion than — whatever it is they think it's saying. It works so well as a sharp anti-police statement that it's the perfect gift for the most adamant antifascist in your love circle.