It isn't. But he could have contributed massively to it, and hasn't, and I can and will hold it against him.
There will always be more ways for companies to extract value without contributing. Linus would have to continuously upgrade licenses from GPLV2 to V3 to Affero and so on. It is not really practical.
What Linus has contributed is already huge. We can't put all the burden of making the world right on him.
Like the industry wouldn't adapt to a more hostile license from linux? Huawei built their own OS, google has fuschia (and g* knows what else)
Would it be better if apple and google flipped the switch and made all future devices 100% closed sourced?