The claim is too broad to verify directly: no public source measures whether “British culture” as a whole was becoming more homogenized in 2011. The closest official evidence points in different directions. Ofcom reported in 2011 that 91% of children aged 5–15 lived in households with internet access and that 12–15-year-olds were more likely to say they would miss their mobile phone or the internet than television, which suggests rapidly changing and more networked youth media habits, but not national cultural homogenization as such. (ofcom.org.uk) The ONS, by contrast, reported that England and Wales had become more ethnically diverse over the previous two decades, with the White ethnic group falling from 94.1% in 1991 to 86.0% in 2011, which cuts against a simple “more homogeneous” description of British society. (ons.gov.uk) Sources: Ofcom, “Children and parents: media use and attitudes report” (2011) https://www.ofcom.org.uk/siteassets/resources/documents/research-and-data/media-literacy-research/children/oct2011/children_and_parents.pdf; Office for National Statistics, “Ethnicity and National Identity in England and Wales: 2011” https://www.ons.gov.uk/peoplepopulationandcommunity/culturalidentity/ethnicity/articles/ethnicityandnationalidentityinenglandandwales/2012-12-11