If we stop fighting for anything just because someone said it's long gone, we'd have nothing.
World's history has changed through wars where some people said that winning [said war] is impossible.
Nothing is set in stone. World is changing more drastically than ever. Assuming that we can't change things or things will stay a certain way is a funny fallacy, at best.
Permanence is an illusion. The pendulum is on the move. It might be moving in a way I don't like, but it can't continue like that forever. I'm just doing what I feel right. I'd rather die trying than regretting that I didn't try.
That train is long gone, as folks rather have business friendly FOSS projects.