Why do other European states besides Britain and France push the Union to the peace table?
OTL Russia was friendly to the United States. France was the most pro-Confederate and although there were pro-Confederate officials in the British government, a lot of the British public was strongly anti-Confederate.
A Britain still PO'd about the Trent affair and France might push the U.S. to negotiate, but Russia, Prussia, Spain, etc. not so much.
The whole thing about the Union advance being impeded by mobs of poor whites looking for jobs was hilarious.
IIRC the ACW was viewed as extraordinarily bloody and savage by the European powers with no end in sight, and the British sincerely considered getting a European coalition to intercede and force separation if certain objectives were met. IOTL that was stopped by the Union victory at Antietam and the Emancipation Proclamation which meant that there was no way to spin an intervention for the CSA with the strongly pro-Union British public - it would have looked like the British government that had banned slavery and was now actively stomping out the slave trade with the RN was now supporting it.
So here, the Union looks like they can't win, that it'll be nothing but a long drawn out bloodbath so Europe, acting the part of condescending gentry breaking up a low class street brawl, would intercede and separate the two parties.
I imagine to form such a coalition Britain would have had to make concessions or turn a blind eye to certain plans by the other European nations, like say...the Spanish, Austrian and French interventions in Mexico and the Dominican Republic.
I'm glad to see that the job seeking mobs bit amused. The logical and inevitable result of the policies that pre-war South, CSA, and Reconstruction South used IOTL that would not have changed or been mitigated by being part of a larger more solvent, economically stable, viable and saner nation thanks to independence ITTL.