Yes, but it only happened after 1946.

The worse part for Mizrahi Jews is that they endured tons of suffering for things they had nothing to do with, and that even in today's Israel they are kind of second-class citizens facing discrimination by Ashkenazi.

thats not true. before the declaration of independence, there was hardly any abar jews migration to Israel for several reasons:

1. Arab jews lived peacefully among muslims and coexisted just fine, they were not subject to european disrimination and pogroms

2. Iraqi jews did not want to immigrate to Israel, so Mossad planted bombs and organized false flags to scare them and force them to immigrate (https://www.middleeasteye.net/news/iraq-jews-attacks-zionist...)

3. Other arab countries also did not want to emigrate, Ben Gurion paid a lot of money for each family to encourage immigration. It is laughable to claim that arabs prosecuted jews, when in fact they coexisted for millennia and lived in the same neighborhoods without any segregation (that existed in Europe)

4. Mizrahi jews who immigrated to Israel suffered from severe discrimination by european ashkenazi. Only low paid jobs were given to Arab jews due to racism. Same racism is towards yemeni jews who were even subject to illegal sterilization

after the Nakba situation in arab countries changed, but it was reactionary to Nakba

This is quite frankly delusional.