That was like 2500 years ago. There are Palestinians today who still carry the keys of the houses they were forced out of.
Should I have the right to go to Africa and kick people out of their houses, on the basis that all humans are believed to have originally come from Africa? There's a statute of limitations at some point, surely.
Well, the War Powers Act is unconstitutional - but in the other direction. Deploying military force requires a declaration of war, which requires congressional approval, but the War Powers Act circumvents that by pretending that using euphemisms to describe military actions instead of calling it war makes it different, somehow.