The decision is correct, the age chosen is wrong.
The decision is incorrect. It is extra constitutional and the justices have set themselves up as moral exemplars in direct contravention to the US COnstitution.
This is not about whether it is unusual punishement to execute minors of a certain age, it is about SCOTUS usurping powers that rightfully belong to the states. It is the people in those states who have the right, throught their elected officials, to decided what is moral and what isn't.
Judicial tyranny writ large and it keeps on coming.