I have never seen claims that JQA did any such thing. He was of course a leading proponent of the expansion and eventual abolition of slavery.
The quote above, if from him, is certainly true. Unless slavery were to endure forever, the South and its politics would eventually have to be reorganized, since the South and its system was admittedly and proudly based on its peculiar institution.
But I'm unaware of any evidence he wanted this to occur via a war.
Repeat: We were not to have a "national" government.
But Adams's formula, which was 100% about coercion of the States and their People(s), contemplated just such a recasting of the Union, and yes, he did want to use rebellion to justify force. Hence, Yankee politics became all about picking a fight with the South. For the Northern insiders who knew what was going on, that is.
Sorry, JQA was an opponent of slavery, not a proponent.