Your challenge is to come up with a scenario where there's a country in the Americas with a mostly Muslim population. Bonus points if you can do it with a POD after 1492.
You could probably add Guyana, French Guinea, Aruba (not countries, but what- self governing possessions?), and Trinidad / Tobago to that list as well.Increasing the presence of Javanese and Muslim Indians in Suriname might work. They make up a substantial share of the population in the country, and could potentially bring more Maroons into the faith.
I’m not sure if there was a way for them to succeed. You’d have to massively ramp up the unpopularity of the NAR goverment to the point where there would be open popular support for the coup. Problem is, even with that, it’d probably just devolve into a low-intensity civil war (I say low intensity because I doubt anyone would be very willing to die for either side) and the US would eventually intervene and end it.The Jamaat al Muslimen successfully overthrows the government of Trinidad and Tobago in 1990. Other religions are suppressed and the new government encourages Islamic immigration. 5% of the population is already Muslim, so it shouldn't take much to get to levels matching that of Suriname.
https://en.wikipedia.org/wiki/Jamaat_al_Muslimeen_coup_attempt