Boundaries are not absurd. The borders in our houses, or the border in a hypothetical gated community or small town of bitcoiners are definitely not absurd.
But the border of a nation-state? Maybe the border is not absurd. What is absurd is the idea of nation-state itself. Pretending that I belong with people that have very little in common with me and that often are working actively to destroy me.
You will soon have to decide what's more important to you: either people who share your "homeland" or people who share your values.