I also didn't bring up Columbus, one of you guys did.
As I already told Buck, the simple fact of the matter here is that the analogy you are trying to make doesn't work. We know just as much about "where we are going" as Columbus ever did, and are just as likely to accomplish things we might not have intended to do when originally setting off.
There also aren't any Native Americans to oppress in space, so that whole self-righteously indignant line of dialogue is a non-starter from the word go.
Cut the nonsense. This whole tangent is a poorly thought out red herring and you know it.
No, you have no plan. You simply want to stand still for all eternity and get pissy when anyone else tries to pass you by.You don't have a plan. You have a movie script, like thousands of other movie scripts about space.
I'm sorry, but the fact of the matter is that people are simply going to ignore your impotent protestations and keep moving forward anyway whether you like it or not.