Are you seriously trying to imply that there's some conspiracy trying to lie about Israeli demographics? That's absurd. I'll assume you're not.
Anyone who goes to Israel can see the ratios pretty readily. Many Israelis are fairly "brown" and clearly of Middle Eastern descent. There's also about 2% of the population in Israel who are black Ethiopian Jews. No serious academics contest the numbers of Sephardic / Mizrahim expelled from Arab Muslim nations after 1948 either that I've read.
The Likud, the current ruling party in Israel, has strong Sephardic / Mizrahi base [1]. Yes, there is bias and discrimination in Israeli society. Israelis debate about these things all the time, including Arab Israelis.
Some commentators believe the Mizrahim vote more far right and tend to be pro the Gaza war because of the ethnic cleansing that their parents and grandparents endured from the Muslim states.
The Seohardic Jews and Mizrahim lived in largely Muslim countries for centuries after Islamic empires conquered most of the middle east starting with the Rashidun Caliphate. They and other non-Muslims were treated as second class citizens and forced to pay jizyah tax every year. It's arguable that the Mizrahim were economically and educationally more suppressed than their European cousins, well at least until WWII.
1: https://www.972mag.com/why-mizrahis-dont-vote-for-the-left/