Right, but I think you miss is what Madison means by "individual liberty," and what he always referred to "individual liberty" under republicanism is the right to self-governement, the right to make ones own laws and social compact. To Madison, the greatest constitutional liberty for individuals was not found in the Bill of Rights, but in the Tenth Amendment (first 8 amendments is the bill of rights and not first 10).
Nope. Read every word.
Perhaps you can tell me which word in there is applicable to my example and prevents Congress from passing laws to the extent necessary to regulate interstate commerce.
"If it is a matter of safty than every state can impose universal safty regulations within its limits like any other country."
It is a matter of safety, but it is also a matter of encouraging and facilitating interstate commerce. As for each state imposing safety regulations, they cannot divest Congress of its authority under the commerce clause.
"To impose on (Congress- rp) the necessity of resorting to means which it cannot control, which another government may furnish or withhold, would render its course precarious, the result of its measures uncertain, and create a dependence on other governments, which might disappoint its most important designs, and is incompatible with the language of the constitution."
-- Chief Justice (and Founding Father) John Marshall, McCulloch v. Maryland (1819)