Again, they can, but it’s less likely. It really depends on how much the genuine threat of civil unrest and violence compares against whatever benefit they get from voting a certain way (which, in perfect world, would be nothing).
Truthfully I don’t think this particular ruling was incorrect or outside the reasonable extent of their powers. Do I think the timing of it was motivated by corporate and political greed? Absolutely. It’s abundantly clear that the decision, popular among conservatives, was meant to serve as a Trump “win” based on the justices he put in place (again, disturbingly contrary to the intended purpose of the SCOTUS). It’s also a potentially dangerous decision to make without any time allotted to get critical regulations codified by congress.
That all being said, while I in no way trust in the impartiality of the current SCOTUS, I do think repealing a law without fairly universal bipartisan support is a decent bit more extreme than what they did here. I think there needs to be a balance between genuine, concerning possibilities and doom-and-gloom panic.