Alexander hamilton opposed a bill of rights mainly because he believed that

The reason why Alexander Hamilton opposed to the bill of rights was mainly because he has a belief that the bill of rights was not needed or unnecessary for the government to continue or to have because this only posses specific powers of the delegate.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.