The North routinely and deliberately ignored a requirement of the US Constitution because they didn't like it. It's that simple.
Please direct to me to the particular clause of the US Constitution that specifically requires Federal Authorities to do anything in regards to Slaves. If you had done true research you would know that that was the whole problem with Article IV, Section 3, Clause 2. It did not specify precisely who was to return the Fugitive Slaves. The Slave Aristocracy who held sway in Washington hammered away at that Clause over many years until it came to mean that no person of color ever had been, was not then, nor could ever be a citizen of the USA. Thats the fact, Jack.
DL Liberal states tried to "living constitution" it away with their bullsh*t made up meanings and their "sanctuary city" like defiance of federal authorities, and the Federal Judiciary simply patched up excuses and looked the other way because they didn't like the agreement either.
Wow, you certainly are well practiced at throwing a bunch of non sequiturs to obfuscate your lies. What a gross and perverted coverup of your own suspect tactics. You throw this out there as a rebuttal to your own distortion of the truth? That wont cut the mustard to anyone with more than one brain cell.
DL The North routinely and deliberately ignored a requirement of the US Constitution because they didn't like it. It's that simple.
It is much simpler than that (probably too simple for the likes of you). I can remember explaining the Fugitive Slave Clause to you many thousands of posts ago. Simply, the Clause acknowledged that Slavery existed, and more importantly, that there were Slave States and that there were Free States. It was about States respecting each others Rights.