(Inspired by @Thande although this is a bit different than his thoughts).
Given the number of revolts, rebellions, civil wars, and wars going on in the 1850s, it would be interesting to think of how these can all like together. My proposal for a WI is as follows: One or more of the Revolutions of 1848 succeed and butterflies embolden abolitionists and free-soilers and frighten slaveowners, which along with maybe some butterflies from the Kansas-Nebraska Act or around then lead to the Civil War kicking off on schedule or earlier, with a stronger antislavery bent from the outset(say, a few more waverers go into the full abolition category) and the 1848ers are backing the antislavery side(since what "union" and confederate" look like may be different here) indirectly and maybe with some people going over, and possible backing from conservatives for the slavocrat side. This is part 1, and would basically be "The Spanish Civil War, but in 1850-60". Possible fun: John Brown is running around and some Swiss liberals are uh shipping him a few more beecher's bibles and a few more men coming over.
This scenario could be extended or a separate scenario added with China getting involved. The PoD here is the God Worshipping Society never gets off the ground or forms, with Hong Xiuqian not coming back or pushing against actual revolt. However, the underlying tensions aren't addressed so instead of a Taiping rebellion there's a somewhat later and larger rebellion that merges more with the Nian Rebellion and the Panthay Rebellion; essentially instead of the Taiping and then other rebellions everything explodes for the Qing at once and they crumble. At this point the US is on fire, or one side's come out on top.
What next? Who comes out on top in China and do they start a war? if so, does anyone get involved? The US, maybe if they want China to be functional or depending on how they feel about the new Chinese regime? Russia, assuming it's not a China-Russia war? Or does something else break out in Europe?
Given the number of revolts, rebellions, civil wars, and wars going on in the 1850s, it would be interesting to think of how these can all like together. My proposal for a WI is as follows: One or more of the Revolutions of 1848 succeed and butterflies embolden abolitionists and free-soilers and frighten slaveowners, which along with maybe some butterflies from the Kansas-Nebraska Act or around then lead to the Civil War kicking off on schedule or earlier, with a stronger antislavery bent from the outset(say, a few more waverers go into the full abolition category) and the 1848ers are backing the antislavery side(since what "union" and confederate" look like may be different here) indirectly and maybe with some people going over, and possible backing from conservatives for the slavocrat side. This is part 1, and would basically be "The Spanish Civil War, but in 1850-60". Possible fun: John Brown is running around and some Swiss liberals are uh shipping him a few more beecher's bibles and a few more men coming over.
This scenario could be extended or a separate scenario added with China getting involved. The PoD here is the God Worshipping Society never gets off the ground or forms, with Hong Xiuqian not coming back or pushing against actual revolt. However, the underlying tensions aren't addressed so instead of a Taiping rebellion there's a somewhat later and larger rebellion that merges more with the Nian Rebellion and the Panthay Rebellion; essentially instead of the Taiping and then other rebellions everything explodes for the Qing at once and they crumble. At this point the US is on fire, or one side's come out on top.
What next? Who comes out on top in China and do they start a war? if so, does anyone get involved? The US, maybe if they want China to be functional or depending on how they feel about the new Chinese regime? Russia, assuming it's not a China-Russia war? Or does something else break out in Europe?