This op-ed doesn't seem any more "reasoned" or "intelligent" that things written on the other side. Indeed, it starts out with mere ridicule, abuse, and smear, and never gets above shallowness or seriously engages the criticisms of mass immigration. The writer does make a valid point about Social Security, but that's about it.
Time and time again, people characterize stale rehashes of the same arguments as "home runs" or "decisive refutations" when they're nothing of the kind. It would be better to just say, "I agree" and leave it at that.
The Wall Street Journal has long supported "open borders" for economic reasons. Most Americans would disagree strongly. Most Americans are right about this. The WSJ's commitment is more to a global economic system than to the United States or its traditions and institutions.