There used to be many Jews in Russia,but now the population of Jews in Russia lowered hugely.

Eh? When and where did 'Russia bomb the Jews'?

He didn't, the Jews experienced persecution at many times and in many places throughout their history, Hitler was not responsible for them all.

The Jews that were persecuted in Russia were persecuted due to the high level of Anti-Semitism that prevailed in Russia. It was a more general animosity than anything that focused in on one person.

In Soviet Russia, Jews kill YOU!

This has to do with the history of Russia.