“Not much point.”
Now that is just plain ignorant. One reason it would be difficult to find and communicate with alien intelligent lifeforms is because so many of them were made extinct before they left there planet and their galactic neighborhood to avoid extinction events that killed them all. The Earth is certainly no exception. Human life will become extinct in the not very distant future unless humans colonize the outer solar system and outer galactic neighborhood. Humans are lucky to have gotten this far without a major impact event causing our extinction. It takes a considerable amount of time to develop the capability for establishing self-sustaining communities large enough to guarantee the indefinite survival of humans. Unless humans begin the effort now, a catastrophic event may destroy humanity before the task is accomplished.
Rhe only question is whetherhumans have achieved sufficient intelligence to understand the threat and then decide to meet the challenge instead of sitting around to be hammered to death and extinction.
I could see something like that happening if the extinction was predictable i.e a giant meteor or something, but it could be tomorrow through a disease for all we know.
I doubt humans will ever colonize anywhere outside of our solar system. The moon and Mars perhaps in time, but that’s it. This is assuming that science fiction doesn’t become reality.