Do Germans choose to live in Germany, or are they born there by some cosmic accident? If you chose to live in Germany, native Germans let you in. You have no right to stop them letting another person in.
I do not understand why discussion about this topic has to be so uncharitable.
Anyway, if you move to, say Germany, and are naturalised, or otherwise granted voting rights, and you vote for a regime that tightens immigration control, then do you not, in a sense, have a right to stop them letting other people in.
Elsewise, would you mind if someone had an opinion different to yours, and expressed that opinion, here in this forum, which, if I understand correctly, is based in the USA, a country known for its elevation of the principal of free speech?
What exactly did you mean by this? Let’s follow it to its logical conclusion.