Oh aliens definitely exist. Everything from slime molds to interplanetary and even interstellar species probably exists somewhere.

They’re not gonna fucking come here though. No one in the universe besides us can probably even detect earth as having intelligent life. We’ve only been broadcasting radio for a little over a century, on a planet that’s 4.5 billion years old.

And If you can travel between stars, you can also live perfectly fine without a planet. I’m sure there are star systems with much better resources than sol, that don’t have omnicidal apes with itchy nuclear trigger fingers.