>And who started mass expulsion of the population?

Maybe the Palestinians of Hebron in 1929?

>The expulsion of the arabs happened in a matter of weeks the expulsion of the Jewish population happened over years.

Yeah, it happened over years partially because it happened in many countries. Country 1 expelled them one day and country 2 another.

>And unlike you i acknowledge that uprooting people based on their ethnicity is wrong

I also acknowledge that. That's why I said in my previous comment that the same thing happened. Hence drawing the connection between to two.