Top-line is: This decision is a "win" for principles of "states' rights", formerly and pejoratively associated by "progressive" factions with the economy and propaganda of atavistic, southern Democratic Party politicians opposed to "federalist" regulation.

Notwithstanding the facts of this particular case o detailed substance of the opinions filed, SCOTUS appears to agree (across party lines) to limit scope of US gov "common law" enforcement.

While some readers will be immediately delighted by the implication for parallel prosecutions by states of Trump's suspicious conduct, the timing of SCOTUS opinion is portentous. In the short-term, pending  voter rights challenge to states' district maps: 15th Amd; in the long-term, high-frequency abrogation to states' "conscience clause" exceptions.

Which "ideological leaning" will progressives blame then?

reference
incorporation doctrine
"selective incorporation", table

archived
US is so headed for a carnival of broke-ass, sovereign states' wildlife.
Limbs va. Indiana
"incorporated protection applicable to the States", Ginsburg vs Thomas

Diversity is the key to economic and political evolution.