Why Did the Alliance for Propaganda Fail?

The us. Failed to provide much needed aid to president ja gulart, forcing him into this untenable situation of choosing between high inflation and a regressive financial stabilization programme. Laid the groundwork for the military coup that overthrew gulart. Not only abandoned him financially, but also directly supported his overthrow by the brazilian military. What happened to j f k's insight that those who make peaceful revolution impossible will make violent revolution inevitable? Yet it's its hard to know exactly. Like why did the alliance for proveson failed? I guess it goes back to your question, like, why the alliance porporgers fail that way?