US taxes their citizens or residents on their worldwide income. If you spend enough time in USA, build business and then decide to move to less tax abusive and

US taxes their citizens or residents on their worldwide income. If you spend enough time in USA, build business and then decide to move to less tax abusive and freedom restricting environment - you still will be owing a big chunk of your income to US government, every year, forever. There are some miniscule deductions but they won't really work for 7 figure entrepreneurs. And with the current administration mentality this situation is not going to get better. Something to consider.