What I am saying is that there is nothing in physics that would lead me to believe that the question you proposed is even relevant.
Just try answering- the question
Your whole premise it that nothing in physics (that we know) allows for interstellar travel.
So...for the last time...
Do you think we know everything there is to know about physics?
It’s OK- when you have lost the argument it is good to concede a point- try it.
Learning happens only when you listen - not when you speak. When you speak you only let people know what (little) you know.
If you think the question is irrelevant than you need to go back to school and learn HOW to think, instead of WHAT to think.