Why did the Nazis persecute 'outsiders' and pursue the 'final solution'? They believed that in order to create a unified and strong country, they must rid the country of those who affect that image poorly. For Jews specifically, the Nazis started off by laying them off from work, boycotting their businesses, etc. But, there were Jews all across Europe and Hitler decided that eliminating the entire race (by putting them in concentration camps and gassing them) was the best option to help Germany grow stronger. That is, because the Nazis believed that the Jews were the root cause of all the problems in Germany.