The FBI have made the point that Apple should comply with the order because they’ve apparently done something similar in China:

If Apple can provide data from thousands of iPhones and Apple users to China and other countries, it can comply with the AWA in America.

I read this as:

Hey! No fair! Other governments get to trample their citizens rights and so should we!

The argument should be instead that maybe if an authoritarian government insists on Apple’s subjugating users that this behavior has no place in the land of the free and the home of the brave.