That’s a reasonable position to hold but it’s certainly much more likely that reasonable people would disagree than it is that they’d disagree that selling data indiscriminately is wrong.
So criticizing Facebook for the latter (which it doesn’t actually do) is intellectually dishonest.
This is sort of similar to how content owners have muddied the waters of debate by calling copyright infringement stealing. One can certainly argue that both are unethical, but they’re still different things!