> interracial marriage isn't going anywhere

The legal argument for in Loving v. Virginia was the same argument that was rejected when Roe v. Wade overturned in Dobbs. Thomas actually calls out the other major cases, basically asking for a chance to overturn those as well, specifically Griswold, Lawrence, and Obergefell. He's not going to overturn Loving given that hes in an interracial marriage himself, but whoever replaces him when he finally retires might, and he would have done all of the work getting case law to that point.