I see your point. The percentages of the zionist migrations during last century are one thing, let's say. The percentages of the current population is another story.
Personally, I totally don't trust wiki in relation to its content on the matter so I will use another source that I do trust: the Jewish Voice for Peace FACT SHEET from 2015. Of course they have different and more recent percentages but this does not affect the point. Amongst other very interesting things they say:
Of 7 million Israelis, 35-40% are Mizrahim, 15% are Russian immigrants, 20% are Palestinian Israelis, 2.2% are Ethiopian, and 25-30% are Ashkenazi Jews and others. This means 55-60% of the Israeli population is ‘nonwhite’; together, Mizrahim and Palestinian Israelis form a majority.