James Madison about the Bill of Rights....It has been said, that in the Federal Government they are unnecessary, because the powers are enumerated, and it follows, that all that are not granted by the constitution are retained; that the constitution is a call of powers, the great residuum being the rights of the people; and, therefore, a bill of rights cannot be so necessary as if the residuum was thrown into the hands of the Government. I admit that these arguments are not entirely without foundation; but they are not conclusive to the extent which has been supposed. It is true, the powers of the General Government are circumscribed, they are directed to particular objects; but even if Government keeps within those limits, it has certain discretionary powers with respect to the means, which may admit of abuse to a certain extent, in the same manner as the powers of the State Governments under their constitutions may to an indefinite extent; because in the constitution of the United States, there is a clause granting to Congress the power to make all laws which shall be necessary and proper for carrying into execution all the powers vested in the Government of the United States, or in any department or officer thereof; this enables them to fulfil every purpose for which the Government was established. Now, may not laws be considered necessary and proper by Congress, for it is for them to judge of the necessity and propriety to accomplish those special purposes which they may have in contemplation, which laws in themselves are neither necessary nor proper; as well as improper laws could be enacted by the State Legislatures, for fulfilling the more extended objects of those Governments. I will state an instance, which I think in point, and proves that this might be the case. The General Government has a right to pass all laws which shall be necessary to collect its revenue; the means for enforcing the collection are within the direction of the Legislature: may not general warrants be considered necessary for this purpose, as well as for some purposes which it was supposed at the framing of their constitutions the State Governments had in view? If there was reason for restraining the State Governments from exercising this power, there is like reason for restraining the Federal Government."

Did James to a certain extent admitted that the Gov and the People can have conflicts whatever the theory says of a Republican Government (about the Bill of Rights)" that they are unnecessary articles of a Republican Government, upon the presumption that the people have those rights in their own hands, and that is the proper place for them to rest."?

Yes he did...! This is why the Bill of Rights was adopted not just for the rights it contains but as a reminder by its presence that for every citizen of a free country there is a daily duty, check there is no reason to restrain the Government.