Yes, your position is biblically supportable, if by “with” you mean “with them in the same aggregation of people at the moment.”
At Mark 16:15, And He said unto them, Go ye into all the world, and preach the Gospel to every creature.
Without getting too legalistic I'm of the impression "ALL" means "ALL" ~ without exception.
That is probably contrary to the interpretation some give the words, but some of us are more easily persuaded.