Many of the people who support this law do believe you need to be racist to fix past racism. Ibram X. Kendi, for example, said "The only remedy to racist discrimination is antiracist discrimination. The only remedy to past discrimination is present discrimination. The only remedy to present discrimination is future discrimination."
My question, however, was more about a slippery slope. Once you allow blatant discrimination like this in the law it is only a matter of time until it is used in a way you don't like. Some people think there are millions of white supremcists in the US. If that is the case and racial discrimination becomes legal, will these people still be in support of laws like this when they require whites to be hired? I would guess not.