A carjacker pulled a gun on a person sitting in a car in front of Justice Sotomayor’s home, a place where it’s very possible that she might have been. It doesn’t matter whether she was targeted or not. If she dies for whatever reason, it’s a concern. Whoever Biden appoints would have to pass the Senate with the current razor thin majority.
Had she been in the car for some reason, then we might have another Ruth Bader Ginsberg moment, and in the worst case scenario, Trump could get reelected and appoint somebody for a 7-2 conservative majority in the Supreme Court.
Don’t get stuck in the idea that lifetime appointments are only a problem for assassinations. Ginsberg died of natural causes, and see what that got us.