i regret looking into the exact number because HOLY FUCK it's so much worse that i thought!
i was going off of projections from the yougov/imeu poll suggesting roughly 10 million
since then, the democratic think tank named the catalist report did their own investigation and found that it was around 11 million for gaza and 30 million all together.
you have to be part of a democrat party aligned political annalist group to get the report; but american periodicals named the nation and rolling stone did a tldr of these report and there's a deeper dive within the cook political report.