At first I was going to say something like "Well with that attitude we'll never get the 'year of the Linux desktop.' But actually, what you say describes exactly what the Linux desktop is.
It isn't about hegemony but rather a free marketplace of ideas and philosophies that gives its users a depth of choice between desktops and configurability within desktops that you can't find in any other operating system. So with your philosophy the "year of the Linux desktop" has already happened and is continuing to.
In other words it's ok for people quit obsessing over low market-share and instead enjoy their freedom.