Happy for the Voice to happen or not happen

As Warren Mundine, prominent indigenous No campaigner,
said at the Press Club today:

Most countries have had a difficult past. Many countries were invaded and wars fought

England also was invaded a few times including by the Germans. Invaded to the extent that the English language contains foreign influences
Why dont the English dwell and blame past invaders, and dwell on their past invasions? Because dwelling on the past solves nothing