There are many more English speakers outside the United States than within it, if India, Nigeria and similar countries are included.

Judge as of 2018-04-25, using circa-2018 estimates of English speakers, both first- and second-language. TRUE: total English speakers outside the US clearly and substantially outnumber those inside it (outside at least about 1.5 times the US figure), with countries such as India and Nigeria making large contributions. MOSTLY TRUE: outside exceeds inside substantially, but a minor detail is off, e.g. one named country's English-speaking share is not well described as a 'relatively large minority'. MIXED: outside exceeds inside only modestly (under about 1.5 times), or depends heavily on the definition of a speaker. MOSTLY FALSE: outside exceeds inside only on generous L2 definitions, while credible estimates put the two roughly equal. FALSE: the US has as many or more English speakers than the rest of the world combined.

Set before the research began.

1. E1 How English is spoken around the world Deseret News · 13 April 2000

   “Total estimated speakers of English worldwide: roughly 1.5 billion.”

2. E2 List of languages by total number of speakers - Wikipedia Wikipedia

   “For example, English has about 450 million native speakers but depending on the criterion chosen can be said to have as many as two billion speakers.”

3. E3 [PDF] Ideological plurality - Ajit Mohanty Bloomsbury World Englishes (Usha Bhattacharya and Ajit K. Mohanty, chapter 10, English in Policy and Practice in India) · 2021

   “Census of 2011 also shows that english is used as a second language by eighty-three million”

4. E4 David Jowitt Nigerian English De Gruyter (Dialects of English, Volume 18) · 2019

   “A Euromonitor report produced for the British Council in 2010 (Pinon and Harden 2010) claimed that 53% of Nigerians could speak English at least to intermediate level”

The evidence gives worldwide English-speaker totals of roughly 1.5 to 2 billion [E1][E2] and large figures for India [E3] and Nigeria [E4]. It gives no figure for English speakers in the United States, so it cannot show whether speakers outside the US are at least about 1.5 times those inside, as the criteria require.