I understand what you mean but in doesn’t mean involved countries don’t have any legit interests.
One of the reasons for WWII was that Germany and Japan felt treated unfairly.
If you give credence to the aggressors’ “reasons”, you haven’t thought things out very carefully. The ideology behind those aggressors has to be scrutinized: any socialist will complain that those that they regard as “bourgeoisie” are treating them unfairly, and the ideology behind Imperial Japan had elements of socialism as well as similarities with Islamic expansionism.