So not selling things is grounds for war, then? If the bartender cuts you off, do you usually try to murder him?
s for your smartazz remark you are so correct no one was trying to invade Japan at that time.
So it was not an issue of sovereignty at all, then.
Trying to equate the aims of Japan and Germany is a losing proposition.
Both regimes believed as a matter of official ideology that it was their historical destiny to be imperial rulers of their continents.
Pearl was a trap and his military tried to tell him.
There is zero contemporary evidence of this.
You also totally misread Japanese psychology of the period.
The Japanese of the 1930s were human beings, not aliens from another planet. They had the same motives and desires as all peoples in history have ever had.