I am actually more interested in why some nobody from Finland cares about American drama
No different than other nobodies cares about other dramas.
What I didn't know is that 34 states can start creating a practically new constitution.
But that's off topic.
Then read our Constitution. It is not very long. And, of course, some parts have been negated by amendments. Here are some factoids of our history that you apparently don't know either:
Thomas Jefferson, one of our founders and author of the Declaration of Independence (but not the Constitution), is often quoted as saying a revolution once in awhile is a good thing. Of note, he despised slavery, but owned slaves. He traveled to France with a female slave (his lover) who would have been free in France, but opted to stay with him and return to America as his slave. General Robert E. Lee (the most prominent Confederate General) NEVER owned a slave. His father owned about 800 and upon his inheritance, he freed every one of them. He despised slavery but walked the talk. General Grant (Union general and post-Civil War President) owned at least one slave, and there are photographs of him, his slave, and President Lincoln meeting at camp. General Grant is quoted as saying about the Emancipation Proclamation that if he had known Lincoln would do that, he would have fought for the South. Finally, the Emancipation Proclamation did not free slaves in the United States at all. It only freed slaves in the "rebellious states" i.e., the Confederacy. It was a political move in the hopes of inciting a revolution by the slaves. Kentucky and Delaware were slave states and retained slavery even after the war until it was outlawed by the 13th Amendment in December, 1865 (well after the war and during "reconstruction" of an non-freely voting and militarily occupied South).
Our Civil War was the most costly war in terms of American lives lost America has ever fought -- both in percentage of population by far and in actual number of lives (over 600,000). It's background is complex, and slave vs. "free" states was certainly a major issue, but the first shots at Fort Sumter were not fired over slavery, they were fired over the Federal government's refusal to pay "rent" to South Carolina for use of its land.
Now, back to Finland's history with regard to human rights. Can you explain?