Nice reasoning unless you live in say, Georgia or Ukraine.
Live and let live is great, and the world is an infinitely better place when people follow that rule.
The problem is when the other guy says NO. You either have to let him have his way, or insist by necessary means that he indeed leave you alone.
The Ukraine and Georgia are free to defend their borders but when Biden doesn’t defend ours his foreign policy dictates should be ignored by Americans.