Counterpoint I’ve been thinking about recently:

Imagine you have a fancy self-repairing spaceship, so good that even accounting for the slow wear and tear of micrometeorites, outgassing, and the motion of feet slowly polishing grooves into walkways, it still only looses 1% of its mass to the outside vacuum every thousand years.

A Dyson swarm of those still becomes a mysterious cloud slowly puffing away from its parent star, and after just 2150 millennia, it’s declined from a Kardashev II to a Kardashev I civilisation.

A planet-based civilisation may live or die, but it won’t burn out quite like that.

The sun moves relative to the neighboring stars. That means we have periodic close encounters (d < 1ly) with other stars, and effectively the Earth starship argument holds. The lazy way to travel the stars is to figure how to avoid killing ourselves for tens of thousands of years, while the stars come to us. See the list of future close encounters at https://en.m.wikipedia.org/wiki/List_of_nearest_stars_and_br...