I don't know how good or persuasive this argument is. All I can say is that it did work for the one Leftist I tried it on.

After going back and forth with a Leftist family member who was losing their mind today about the RVW decision, ranting that she's "had her rights ripped away from her by the SCOTUS", I took this approach:

"Your rights weren't taken away. This was the Federal Government saying 'After looking at the Constitution, we realized we don't have the right to say that abortion is okay or not okay. So we have to hand this over to the States'. They didn't take any rights from you, they just came to the conclusion that there's no rationale for it to be a federal issue. Now this decision is made by your state representatives and those people are going to be much more responsive to your communications that a Federal rep or senator will be."

She completely calmed down. She's still not happy of course, idiots rarely are. But she calmed down and has at least a 3rd grader's understanding of the situation.

Your mileage may very. Maybe my approach isn't as clever as I think it is. But it did work in one instance at least.