Given that Trump is at the head of the USA, and knowing how he likes to be the best and number one at everything and now wants to impose that on the USA, perhaps Haitian diplomats can have a meeting with him. In that meeting they should, indirectly of course, make Trump aware of the great plan that China has for Haiti, the implications this will have in the overall power of China right in the USA's backyard, and how weak and bad the USA will look when China accomplishes in a few decades what the USA hasn't accomplished with Haiti in over a century.
Maybe, if they know how to stroke Trump's ego and patriotism just right, he might counter the Chinese proposal with a new American plan that, again knowing Trump, could be $60 billion. You know, to keep the USA in the number one, the best, the most amazing position (per Trump.)
Then, given the EU's envy of the power of the USA (which is the main reason the EU even exists, lets not kid ourselves), Haitian diplomats can go over there and do the same. Hopefully the EU will unleash their own multibillion dollar; excuse me, I meant multibillion euro lol; proposal for Haiti too.
As long that tiny Haiti remains in the center of it all, sounds good! The race to develop Haiti, whomever does the most and at the fastest time wins!
Since China has shown that it keeps its word, that in itself is a guarantee that the pledge amounts of investments will be made. China is the new kid on the superpower block, Trump will not just let the kid make the old boy look bad, and the EU will not just sit around as the USA and China gain more power in this part of the world.
In the mean time, little Haiti is shining in the Sun. Finally, its out of that long dark tunnel.