pmensky said: "Do you understand that when you use the word, “setting” it refers to time and place and that hip hop and rap wasn’t around in New York in 1776, and electric guitars weren’t around in Paris in the 1880s?"
You're being far too literal/B&W in these instances. Search the internet for what Manuel-Miranda says was his inspiration writing "Hamilton" (re: hip-hop, specifically).
Also, your comment, "Believe it or not, Country and Bluegrass style of music, along with Rock ‘n Roll, is written and enjoyed in countries other than America, including France" has the timeline in reverse.
Country and Bluegrass styles were inspired by European/Celtic influences, not the other way round. Immigrants to America brought their cultural influences with them. America did not export Country and Bluegrass styles (or even rock and roll) until many years later.
Folk music in France, during the time period Soubirous was alive, also stemmed from Celtic inspiration.