They never put interracial marriage up for a vote when they made it illegal in the first place. It's not like the laws came first. There were plenty of interracial marriages before some states made them illegal. In this case, "equality" was explicitly taken away first and then restored with no input from the public. I wonder was there a vote on the decision to import slaves in the first place? Or whether white people wanted to marry outside their race. Because the laws effectively kept white people from marrying any other race, not prevent Black people from marrying white people.