FWIW: Polling showed American support for interracial marriages was still underwater in 1992, decades after the Loving ruling. Majortity support only happened on the mid-to-late 90s
Which is why he should refrain from acting such a strong policy shift and what could be perceived as a major change of alliance.
What would be equivalent would be Trump deciding to change a long standing geopolitical policy after he lost the mid-terms and without the US congress having any voice in the matter.