Good luck with that. No one has been able to do it for decades on unclaimed land like Sealand or Liberland. And you want to essentially annex another country's territory by force and be recognized? That's pure fantasy.
That's not an argument made in good faith. You call the collapse of the USSR into Russia a "new country"? How many of these so called "new" countries are just single billionaires annexing some island they bought and being recognized by international institutions? I'll tell you how many: exactly zero. Total fantasy.