The Dude dismantled this crazy CANZUK union idea that has been mainly advocated by Anglo Unionists from the UK after BREXIT. They want to create a British Empire 2.0, but only with countries that are still largely Anglo/British culturally, predominantly English-speaking & have the English Monarch as their Head of State etc.
It's interesting they left out the USA & South Africa which are predominantly English-speaking countries. Its likely they left them out because both countries are no longer culturally Anglo/British, since most Americans are descendants of German, Italian & Irish settlers & South Africa is largely Zulu/Black African culturally etc. Plus, neither countries no longer have direct ties to the Mother country (UK), such as by having the English Monarch as their Head of State etc.