Yes, the UK ended birthright citizenship in 1981. https://en.wikipedia.org/wiki/British_Nationality_Act_1981

The empire caused all sorts of citizenships to appear; citizens of the Empire were "British" right up until the point where they actually started moving to Britain, causing that right to be taken away. https://en.wikipedia.org/wiki/Expulsion_of_Asians_from_Ugand...