Stand in front of a mirror and read that posting to yourself: “no one wants any Jews in their country…Go back to Ukraine and Poland.”
Go back to where we are not wanted? You have stated in a few words exactly why Israel exists.
And the majority Mizrahi aren’t going “back” to Ukraine and Poland because that’s not where they are from. The Israelis are not going anywhere, any more than the Palestinians/Gazans are.