Both parties have imperfect histories here, but if you’re singling one out for special blame, the Democrats are an odd choice.
Both parties voted for it, but it was sponsored by conservative Republicans in the House and Senate, signed by conservative Republican Calvin Coolidge.
I tried to explain it to D’Souza’s friend here:
But there has been NO racism in the Republican Party. Ever.
Sure, OK.
TL;DR: History is messy. Anyone speaking about unchanging actors in absolute terms doesn’t have the slightest clue how it works.