This is an argument for 14th Amendment incorporation right here as Madison seems to be saying that the purpose of the BoR was to guarantee liberty at the state level as well since some states didn't have individual rights spelled out or they were defective. In other words he didn't believe that the federal BoR was to be limited to the federal government only. Interesting that the collectivists don't bring that up.
As per Art 6 para 2 and the actual legislation passed around to the States.
To whit:
The First 10 Amendments to the Constitution as Ratified by the States December 15, 1791
Preamble
Congress OF THE United States begun and held at the City of New York, on Wednesday the Fourth of March, one thousand seven hundred and eighty nine.
THE Conventions of a number of the States having at the time of their adopting the Constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: And as extending the ground of public confidence in the Government, will best insure the beneficent ends of its institution
RESOLVED by the Senate and House of Representatives of the United States of America, in Congress assembled, two thirds of both Houses concurring, that the following Articles be proposed to the Legislatures of the several States, as Amendments to the Constitution of the United States, all or any of which Articles, when ratified by three fourths of the said Legislatures, to be valid to all intents and purposes, as part of the said Constitution; viz.:
ARTICLES in addition to, and Amendment of the Constitution of the United States of America, proposed by Congress, and ratified by the Legislatures of the several States, pursuant to the fifth Article of the original Constitution.
Seriously gives the lie to the "incorporation" doctrine that was early on used to keep certain minorities from claiming the protections for their Rights as freedmen.