The day after the SCOTUS ruling, I think the best headline I read was by Andy Borowitz. It read: "In landmark decision, Supreme Court strikes down main reason the country was started." Painfully on-point.
The decision took a lot of secularists by surprise, not because of the ruling per se, but because of the timeline. Advocates of church-state separation (AKA the constitution) weren't expecting a ruling until June.
Already we've had local and state regressives rejoicing that they can exercise their freedom of religion while attempting to contrive ways to deprive others of theirs.
I interviewed David Williamson, president of the Central Florida Freethought Community about the ruling and what can be done moving forward. Here's the interview.