While he lived in Europe in the 1930's, he toured air force installations all over Europe, including the German Air Force. Hermann Goering, gave Lindbergh a high German decoration, which Lindbergh accepted at the time and so far as I know never recanted or sent back.
He was also involved in the America First movement of the time, which was accused by some of being antisemitic.
I don't think if Lindbergh as an unbiased source of information on this point. Was he as bas as Murtha is now? No, but I don't think he was pro-military, even thought he did serve in WW2.
An unreliable source at best.