How does interracial marriage square with originalism/textualism? The vast majority of states, even in the north, had laws banning interracial marriage when the 14th Amendment was ratified in 1868. None of them repealed their laws as a result of the 14's passage. Cleary most people did not think it protected a "fundamental right" to interracial marriage.
Loving overturned the remaining 16(!) states' ban on interracial marriage only in 1967. Roe, Lawrence, and Obergefell built on the same reasoning used in loving to protect abortion, consensual homosexual sex, and SSM respectively. With Obergefell, we already know 3 of the current SCOTUS Justices dissented thus needing only 1 of the Trump appointees to join to wipe it out.