Patently obvious? Why, because you say it is patently obvious? Sounds like the Global Warming argument.
What constitutes a "racially inflammatory" tee shirt. Who are the arbiters? You? BLM? A majority vote?
Would Gadsden Flag be Racially inflammatory?
The arbiters are the officer's superiors in the department, and—in case you haven't noticed—his chief has clearly spoken out as to this officer's violation of policy. The officer was wrong, and I fully agree with his "non-contact" assignment. Period.