Yeah. Quite a few "if the South had won the civil war..." stories and articles written during the Civil War centennial in the early 1960's presumed that the CSA and USA would be on the same side in the World Wars, and those few that presumed a divergence tended to have the CSA with "the bad guys".
There actually was quite a bit of anti-British sentiment in the South in 1915:
" There *was* considerable anger among Southerners over the blockade
preventing cotton from reaching Germany. In 1915 it was thought that
Southerners might join with German- and Irish-Americans in Congress
to demand an arms embargo in retaliation for the British suppression of
the cotton trade with Central Europe. John Sharp Williams, the pro-Britsh
Senator from Mississippi, spoke truthfully when he said that every
politician in the South had to be anti-British. On June 28, 1915 the
Georgia state legislature petitioned President Wilson to take every
measure "diplomatic if possible, retaliatory if necessary" to open
American trade in cotton with neutral European ports. However, the
British defused this problem by a secret agreement for the British
government to buy enough cotton to stabilize the price at ten cents a
pound. See the discussion in Arthur S. Link, *Woodrow Wilson and the
Progressive Era 1910-1917* (Harper Torchbooks edition 1963), pp. 170-2"
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