Dekaranger is such good copaganda and I love it immensely. But yes, you're right that Japanese copaganda hits differently.

The just finished sentai season (Boonboomger, which you should watch because it's OMG SO GOOD) has a member who is a cop and he has a beautiful climactic moment that is all about him screaming that cops are there to protect people and not take power. Jou is wonderful.