I disagree. Given current reality, a language like Lojban would get better traction if it took all of its vocabulary wholesale from English, the pre-existing international language that at least a billion people already have significant knowledge of. With the way it is now, everyone has to learn much new vocabulary.Latin doesn't meet most requirements: ideal language need to be as culturally neutral as possible (Latin is a dead language but with a lot of history and heritage in a lot of western languages), easy, without ambiguities and irregular cases that most natural languages have, and it must be more powerful than natural languages in a logical way.
Lojban is the opposite: https://en.wikipedia.org/wiki/Lojban#Lojban_as_a_speakable_logic
Of course, you were joking when you said Latin