“...what if it started here and then spread elsewhere? And so we found some sort of DNA on Mars, but that’s because it spread there from Earth. Is that possible

“...what if it started here and then spread elsewhere? And so we found some sort of DNA on Mars, but that’s because it spread there from Earth. Is that possible? Yeah, but that sort of places us at the center of the universe, and all the force of history is to say, “Don’t think of us as the center. We’re nothing.”” What kind of argument is that? Sounds like some kind of anti-geocentric dogma, not an actual argument.