> For that reason, in future fases, we should reconsider all of this Court's substantive due process precedents, including Griswold[1], Lawrence[2], and Obergefell[3].
The decision advocates for re-ruling on each of these cases. If these should be decided against their current status, expect states to outlaw contraception, gay relations, and same-sex marriage.
1. Ruled that contraception bans are unconstitutional https://www.law.cornell.edu/wex/griswold_v_connecticut_%2819...
2. Ruled that sodomy bans are unconstitutional https://www.law.cornell.edu/wex/lawrence_v._texas
3. Ruled that same-sex marriage bans are unconstitutional https://www.law.cornell.edu/supremecourt/text/14-556
In other words, Thomas has always been crazy about this sort of thing but no one else on the court agrees.
Hence why nobody else signed on to this concurrence.