Interracial marriage opposition hasn't gone away either, but is so irrelevant that no one considers it worthy of anything more than scoffing at when someone who is against such things rears their head. There are so few people who legitimately oppose interracial marriages, especially their being legal, that it actually has become a nonissue, despite the rare occasion when someone does something to try to prevent an interracial marriage from happening in some way or from someone having to participate in such an event.
Like this one:
Interracial Couple Denied Marriage License By Louisiana Justice Of The Peace
And yes this same sort of thing did happen 45 years ago after the Loving decision was made.
https://www.aclu.org/news/nc-interracial-couple-denied-marriage-license-1970s-speaks-out-against-sb-2
"Thomas and Carol Ann, who are both legally blind, met in Raleigh and moved to Winston-Salem to work for the Industries for the Blind in the 1970s. Thomas proposed to Carol Ann in 1976, and the two eventually went to their local courthouse to receive a civil marriage ceremony. Instead,
they were turned away by two magistrates who said their religious beliefs prohibited them from marrying a black man and a white woman. In 1977, a federal court ordered a magistrate to perform their marriage, and the two magistrates who originally refused were ordered to pay legal fees. The couple now lives in Robbins, North Carolina."