It took the United States over 80 years to be rid of the horrid British institution of slavery.
Oh, and white Republicans passed the 13th to 15th Amendments without a single Democrat vote.
The British abolished the slave trade throughout the vast majority of their empire in 1807.
They would go on to make slavery itself illegal in 1833, with gradual abolition mandated by 1840.
It would take us another few decades (and a civil war) to do likewise.
Oh, and white Republicans passed the 13th to 15th Amendments without a single Democrat vote.
This is historically inaccurate. The proposed 13th Amendment had 8 Democrat votes in the Senate, 16 Democrat votes in the House.
On April 8, 1864, the Senate took the first crucial step toward the constitutional abolition of slavery. Before a packed gallery, a strong coalition of 30 Republicans, four border-state Democrats, and four Union Democrats joined forces to pass the amendment 38 to 6.
https://memory.loc.gov/cgi-bin/ampage?collId=llcg&fileName=065/llcg065.db&recNum=515
Congressional Globe, Senate, April 8, 1864, 13th Amendment vote, passed 38 to 6.
https://memory.loc.gov/cgi-bin/ampage?collId=llcg&fileName=068/llcg068.db&recNum=532
Congressional Globe, House, January 31, 1865, 119-56-8
https://www.history.com/news/congress-passes-13th-amendment-150-years-ago
House of Representatives Speaker Schuyler Colfax declared the results with a quiver in his voice: “On the passage of the joint resolution to amend the Constitution of the United States, the ayes have 119, the noes 56.” The measure passed by the narrowest of margins, with eight members abstaining. Sixteen Democrats, all but two lame ducks, joined the full slate of Republicans in approving the measure.