You might need to prove your knowledge of the English language if you’re 18 or over and applying for citizenship or to settle in the UK (known as ‘indefinite leave to remain’).
You can prove it by having either:
an English qualification at B1, B2, C1 or C2 level
An officer administers a naturalization test to determine whether an alien meets the English and civics requirements.[1] > The naturalization test consists of two components:
English language proficiency, which is determined by the alien’s ability to read, write, speak and understand English; and
https://www.gov.uk/english-language
https://www.uscis.gov/policy-manual/volume-12-part-e-chapter-2
They already do it, there is no double standard here.
In the US, there is no language test for a green card. There is for naturalization though.
The US didn’t have an official language for a reason. Which is exactly why Trump said it’s English in a 2025 executive order.
We are a nation of immigrants, something that Republicans want everyone to forget