The "thin blue line" flag is used almost exclusively by the far-right, and more specifically by white supremacists.
The flag on the Lightning isn't that flag, but it does resemble it.
The flag on the Lightning isn't that flag, but it does resemble it.
No, this is 100% a political symbol with partisan (though not strictly party-aligned) intent, not a celebration of law enforcement. I don't think it's helpful to call it "racist", but neither is it appropriate to pretend that this isn't at least in some sense a "Fuck BLM" symbol either.