The sheer unadulterated racism from the past is horrifying and sickening. Sure, we still have work to do, but I'm glad we've come so far in the last few decades.
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One disproportionately effects black voters with a (https://www.brennancenter.org/our-work/research-reports/impa...) ~10% effectiveness
Just because one is working better then the other doesn't mean they are any different in their purpose