:Bonaire is not a nation. It is a municipality of the Netherlands and is as much a nation as Amsterdam. Bonaire's status is not that of an island that "hasn't gained [yet] fully independence, it is really nothing more than a municipality, called "special municipality" or "public body" in the sense that it's not part of a province and hence also carries out some additional tasks normally performed by the province, but it is fully part of the Netherlands, and has no other special status within this country. Bonaire being a municipality of the Netherlands is not something that is under dispute or evaluation, and there is no demand for or reason to assume that Bonaire will gain independence as a country in any near future. This makes it impossible for Bonaire by itself to become a FIFA member. The FIFA members that are not fully independent at least have some sort of autonomy, like for example Curaçao has. This is essentially different from Bonaire: Curaçao is a country within the Kingdom of the Netherlands, Bonaire is not. For that matter, the "national football team" for Bonaire, is the Dutch national football team. 
 :The Dutch term "Nederlands elftal" indeed doesn't contain the word "national", but it does feature the word "Dutch", in this context referring to being "of the Netherlands" (as a whole). Since this term refers to the country, it can be translated as "Dutch national team" ("elftal", for non-Dutch speakers, being the Dutch word for "football team", literal translation "eleven-count", referring to the number of players per team allowed on the field). "Bonairiaans elftal" does not refer to a country but to a municipality.