I agree that, given the actual history of the US military and foreign policy, it is a harmful and misleading euphimism.

It is also, however, the official name of the department, as determined by the US Congress who are empowered to determine such names.

In no case I am happy to humor this administration's decisions, especially when they are illegal/extra-legal/paralegal. If they wanted to actually rename the department, there's a clear process for that, and then perhaps we could "humor" that effort. As it stands, there's nothing here to humor, since there is no decision, only illegal aspiration.