I have come to think we have to treat Donald Trump's tweets like Snapchat. It's just something that is going to go away. And it flies out of some region of his brain and it goes out into the ether. And usually it's on the realm of media.
Both French and Latin are involved with nationalistic and religious implications which could not be entirely shaken off, and so, while they seemed for a long time to have solved the international language problem up to a certain point, they did not really do so in spirit.