My argument is that had they not consistently expanded their ‘legally created’ state by taking land which was already occupied by other people we probably would not be in the situation.
If I were going to summarise your argument in such basic terms it would be: well everyone has been mean to them since they moved in so it’s fair game for them to do whatever they want back.
I don’t know where you live but do you think your countrymen would be happy if some other countries decided that a significant portion of your country was now no longer yours and was going to be lived in by some people with a significantly different ideology to you and then over the next 80 or so years they kept taking more of your country and leaving less and less of it for you to live in all the while treating you like second rate citizens?