It makes no difference to the universe whatsoever. Humans have not survived fractionally as long as the dinosaurs and I see no reason to predict that they will.
I advocate liberty because I desire liberty for me and mine, and the best way to guarantee that is a political system which is so structured so that liberty can not be taken from anyone.
Maoists and other dictators advocate their systems because they desire power for themselves and for theirs, and the best way to guarantee that is a totalitarian state where they can enforce life and death for the individual, or for entire populations, merely upon their own whim, without recourse or the fear of reprisal.
It's an exact analogy.
What *objective* grounds do you have to advocate one over the other?
Cheers!