Thats like, your opinion man

Guy was responding to a comment about a California plate

Yeah pretty sure that’s a war crime under the Rome Statute. Emphasis mine.

The law applicable in international armed conflict forbids “mak[ing] improper use of … the military insignia and uniform of the enemy …” (Art. 23(f) of the Hague Regulations of 1899 and 1907; Art. 39 of Additional Protocol I; Art. 8(2)(b)(vii) of the Rome Statute of the International Criminal Court). Not all uses of enemy uniforms are prohibited therefore; only “improper” uses. For example, wearing enemy uniforms in order to flee the fighting or escape capture does not run afoul of the law (U.S. Department of Defense Law of War Manual § 5.23.1.4). On the other side of the spectrum, engaging in attacks while wearing the uniform of the enemy is flatly prohibited, as affirmed in the treaty law and numerous military manuals (see here, here and here, for example), and is a war crime under the Rome Statute.