Where are you, fellow enthusiasts?

There is no possibility of interstellar travel; it is fundamentally impossible, so even if someone else exists, we will never meet.

Stop, they are actually possible. Comets from neighboring star systems sometimes fly to us. The question is, if it is impossible to travel within a reasonable time, many civilizations will say something like "we found some fools" and will not fly beyond their star system. And there will be few of those who do, and the chances of meeting them will be small.
But in general, it is difficult to say. At the moment, all this is science fiction, and it is simply impossible to reason about this topic seriously.