And why not. They have shown, consistently over a long period, that they have all the "requisite" attributes.
Yes they have. Haiti's history is fascinating. The slave revolt was possible partly because of a dangerously large population of recently arrived slaves, many of them from the same part of Africa, mostly Congo. This was generally considered a bad idea by slavers.
Things started to go South immediately the French were eliminated with Jean-Jacques Dessalines declaring himself emperor, the country splitting up into two factions shortly after his assassination.