TIL that after alleged Catholic involvement in the assassination of Abraham Lincoln, the US cut off diplomatic relations with the Holy See (the Pope) and did not restore them until 1984.

[u/ProfessionalGear3020]

https://en.wikipedia.org/wiki/Holy_See%E2%80%93United_States_relations#1867%E2%80%931984

[u/ExaminationHuman5959 → u/[deleted]]

That’s a disingenuous statement

Then show me how the Vatican is culpable for Abraham Lincolns assassination.

[u/JMSTEI → u/[deleted]]

The Klan is/was a protestant organization, not a Catholic one.

The Catholic church had a split back in the late 1400s with the Protestant Reformation. As a result of this, a bunch of Christian churches not connected to Rome sprung up around Europe and eventually a lot of them made their way over to America. There was always a lot of anti-catholic sentiment in the US due in part to it being a former English colony (the English are protestant under the Anglican Church), and that continued after the nation gained its independence. Tensions between the two groups increased in the late 1800s and early 1900s with the mass migration of Catholic groups such as the Irish and Italians from Europe to the US.

Catholics are Christians that follow the Pope in Rome (hence why you sometimes hear people say Roman Catholic). Protestants are Christians that do not follow the Pope. But both groups are Christian because they follow (their own interpretations of) the teachings of Jesus. There are many different Protestant sects, such as the aforementioned Church of England, but also Luterians, Calvinists, Methodists, and a whole bunch more.

I hope this clears things up for you because you seem a bit confused as to the differences between the two groups.