What are a few strong reasons for why Hitler hated the Jews? concrete facts and not theories

There are no 'concrete facts' for why Hitler hated Jews. He was a racist. He hated them for false reasons.

1) From the science of Eugenics (which is now proved wrong) He believed The Germans were 'The Super Race' and Germany was the 'Fatherland'. It was no place for inferior races like The Jews. 

2) Approximately 1 in 4 Germans were Jewish, which made Christian Germans feel very uncomfortable. The Jews presented a good unifying focus for German unrest. Many people blame someone else for their own problems, politicians know this and use this.

3) It was a common belief that Jews were in conspiracy. There was a widely published 'secret Jewish handbook' called, "The Protocols of The Elders of Zion" which told the reader how to run The Jewish Conspiracy. It was supposedly a captured, top-secret Jewish text. In fact it was written by The Russian Secret Service as anti-Jewish propaganda. Even today you occasionally find extremists who claim  "The Protocols of The Elders of Zion" is a geniune Jewish guide to global domination.

4) He genuinely believed Germans were the Master Race. The Jews were little more than animals. A pest like a rat that needed destroying.

5) The Jews have always been persecuted by Christians. They were blamed for killing Jesus. (who, ironically, was a Jew).

6) Martin Luther (a German that Hitler admired) wrote several books on the need to destroy or remove the Jews from Germany. We know Hitler read these works.