It happened baecuase the french has stakes in the economy and they also didn't want comunism to spread.
In November 19,1863 Abraham Lincoln's speech, in the last sentence he said "the government of the people, by the people, for the people, shall not perish from the earth".
Https://www.bbc.co.uk/bitesize/guides/zjbj6sg/revision/3
Hope this helps.
Martin Luther didn't start his own reformation because he obviously wasn't the only guy who was thinking; why would i want all my hard earned money to go and do get used on the different church taxes.