As do people who continuously insist the sole motivation for Southern states to leave the Union is "protecting slavery."
I am borrowing a page from Rush Limbaugh. I am illustrating absurdity by being absurd.
Of course I don't believe the Founders were motivated by a desire to protect slavery. Neither do I believe the vast majority of Confederates were motivated by a desire to expand slavery.
In both cases, the breaking away states were aggrieved, and wanted out of a government they no longer saw as serving their interests.
Your right that the founder weren’t motivated to rebel to protect slavery. There is absolutely zero evidence of such a claim in their writings or speech’s.
You are absolutely wrong that the southern rebels didn’t rebel to protect slavery. There is overwhelming evidence in their writings and speeches that protecting slavery was the primary reason they rebelled with all other considerations being a distant second.