It was clear to me. What examples would you have used? The privileged caucasion, 2 parent home, wealthy CEO?
By your logic, if those were the examples a politician used, I should take that to mean everyone. Would you really be buying it if I were sitting here saying "No, clearly he meant everyone. Any intelligent person can see that"? If you're saying no, then you can see where I'm coming from. If you're saying yes, then I guess you're an elitist.
If he wanted to make it clear he meant everyone, he could have said something like "the empathy to recognize the difficulties all Americans face- old and young, black, brown, and white, gay and straight, single parents and married parents."
If you think people should have empathy for everyone, exactly why is it you are having such a fit over a Supreme Court Justice having empathy?
There are a lot of good qualities one should have. That doesn't mean they should all be mentioned specifically as criteria for a Supreme Court justice. "When I pick a Supreme Court candidate, I want someone that is smart, knows the law, and definitely is not a cannibal. I will have no cannibals on my court!" I know that sounds crazy, but it's not too different from saying "I want someone who is smart, knows the law, and definitely is not a sociopath. The Supreme Court has no room for sociopaths!" As you said, a person without empathy is a sociopath.
So why am I concerned he would pick this one positive trait to emphasize? Because it could mean two things. It could mean that he wants a justice who will bias her decisions towards the downtrodden groups he mentioned. That would not be blind justice. The other is that he wants someone who will be able to see how the ramifications of his decisions affect various groups and factor that into his decision making. That is outside the judge's role in interpreting the law. That's the job of the legislature.
That and the fact that he said the Warren Court "wasn't that radical" leaves me with little hope that we won't get a judicial legislator.