Muad'zin
Fractal Fanatic
Probably true. But space is also VAST. It took our fastest spaceship, New Horizons, 9 years to reach Pluto at the edge of the Kuijper Belt, and the Voyagers, underway since the 70's, still have not left the solar system. I'm not even sure they have reached the Oort Cloud yet. Unless FTL travel and communication is possible, space travel will be slow and so will be the spread of civilizations and its signals.The universe is teeming with life.
As for the Fermi paradox, It took hundreds of millions of years for intelligent life to evolve on Earth. It might even have sooner if we didn't get hit by asteroids occasionally. There is so much we don't know about life, if life can form elsewhere, if at all. We're dealing with a statistical sample of one. That is why its so important to find out if life exists on the ice covered ocean moons of Jupiter and Saturn. If it can exist elsewhere, life might be abundant. If we never find life it might be a whole lot more rare then we thought. And help explain why we don't notice any other civilizations. If its so rare that only one civilization on average exists in a galaxy, we might as well be alone.
And because life is rare, if we don't want to die out its pointless to live in harmony with the Earth, because the solar system is full of stuff that doesn't give a shit if we live in harmony with the Earth or not. Its obviously good to take care of our home but we gotta get off this rock and ASAP. Spread across the solar system and send out colonization fleets to other stars. Which ironically will probably mean that members of our own race will become the aliens of tomorrow. So maybe we will get Homo Terra here in the solar system, but Homo (insert name of the star they live around) elsewhere. And Homo Astra traveling and living in the ships in between.