Nature has a slight preference for females so outside of things like drowning your girls (or getting them aborted these days) as happens in certain parts of the world there will be more females than males.
What third world country is the US?
Any country which doesn't collect data in a way which made the KGB envious are not proper countries.

(You get one guess as to which country has such surveilence/data collection systems.)
Hence why I said at least in the west.
And the GDP example is a poor camparison, since GDP isn't determined by biology. Gender is decided by biology just like skin colour. How can you say that black people are a minority, but men aren't? Because how are blacks different from whites if not from their biological differences?
(Also I am not saying men should have minority protection; just that you can't say men aren't a minority.)