Four of the justices are not cowards. They are brave Leftists holding back the tide of Constitutionalism that is threatening all the Left has accomplished in the last 70 years to increase state power, undermine the checks and balances of the Republic, and destroy key social institutions and norms.
Four of the current justices have some moral standing to fight for the life of the Republic and a return to limitations on government power.
Roberts is a coward.
A gift from George W that keeps on giving. Kinda like herpes.