The claim asserts that there are British "fanatics" working in the European Commission who "hate everything this country has ever stood for" and are "filled with self-loathing." This is a claim about the internal mental states and motivations of unnamed individuals. It is not a verifiable factual assertion about the world — it concerns the private psychological dispositions of unspecified people, which cannot be corroborated or contradicted by any public evidence. There is no publicly available data that could establish or refute whether unnamed British employees of the European Commission hold such attitudes. The claim is opinion-formulated as fact: it characterizes a group of people (without naming them) as harboring specific emotional states ("hate," "self-loathing") that are inherently private and subjective. No public source, dataset, or official record could confirm or deny what unnamed individuals feel internally. It is true that British nationals have worked at the European Commission (approximately 1,000 British civil servants worked for the EU as of recent years, including around 538 directly for the Commission, per Politico reporting). But the specific assertion about their psychological motivations — hating Britain, self-loathing — is not something public evidence can address. Sources: Politico, "Brits working in Brussels sue Commission over Brexit 'discrimination'" (https://www.politico.eu/article/british-officials-working-for-the-eu-sue-commission-over-travel-expenses/); High Profiles interview with Nigel Farage (https://highprofiles.info/interview/nigel-farage/)