He just pointed out that people who say it's not "okay to be white" are a hate group (true) & that white people should run the fuck away from a hate group.

The white supremacist thing to say would be that whites should hate black people back and organize and hate/fight back in order to protect whites against blacks, to drive blacks out of "white" areas and basically go on the attack, not to run away.

Scott Adams basically came to the realization of white flight, which is nothing new.

In 1870, The Nation covered the large-scale migrations of white Americans; "The report of the Emigration Commissioners of Louisiana, for the past year, estimates the white exodus from the Southern Atlantic States, Alabama, and Mississippi, to the trans-Mississippi regions, at scores of thousands".[23] By 1888, with rhetoric typical of the time, Walter Thomas Mills's The Statesman publication predicted: Social and political equality and the political supremacy of the negro element in any southern state must lead to one of three things: A white exodus, a war of races, or the destruction of representative institutions, as in the District of Columbia.[24]

So white flight was a well known thing even back in the 1800s. The reasons were different back then, though, more based on racist disgust than non-racist legitimate fears.

There's a case to be made that he didn't go far enough.