If Hitler declares war on Japan instead

Could Hitler declare war on Japan to encourage an American retreat from the Atlantic?

The initial assessment is that it would create diplomatic complications while giving Germany little ability to help against Japan.

A German declaration against Japan would create a contradictory alignment: Germany would share Britain's opponent in one theatre while remaining at war with Britain in another. British control of the approaches would also prevent Germany from doing much against Japan. The anticipated result is diplomatic complication with little practical military effect. It does not establish that the gesture would draw American forces out of the Atlantic.