If I were debating Schumer (or any dem) and they brought that argument into the debate (about population of their states)---
MY retort would be that by not letting Bush's nominees to come out for a floor vote on the Senate floor, the FEW dem senators that are on the judiciary committee are disenfranshizing MILLIONS more people, whose states have NO senator on the judiciary committee, which in effect keeps the whole state from having ANY say in the process of voting on judges.
Every Justice who has ever been seated on the Supreme Court has got there by a simple majority vote. There are NO exceptions.
You can do stats and come up with just about anything...Global warming is a good example.
I prefer a chart listing every Supreme Court Judge, the Majority Party at the Time, And the Vote...by Party and totals. I believe this chart will show that what they are doing is pure obstruction.