Why did hitler focus on harming jewish people during the rule of germany
he blamed jews for the ills of germany.

Hitler promoted the blaming of Jews because supposedly they caused the losses of Germany during the War. That's why Hitler started a prosecution campaign to kill them and to force them into doing forced work. Religions that opposed that were also prosecuted as well.

Have a nice day! :)

If he breaks the law then he had to resign from his post and so he'll lose his/her powers.