Do border guards in most countries require a warrant to search you? Rhetorical question.

In the UK, HMRC can search your house without a warrant if they have 'reasonable suspicion' that goods that are 'liable to forfeiture' are likely to be moved or destroyed. See Customs and Excise Management Act 1979, section 161. Anything seized can be used against you in court. In 2014, HMRC described this power as 'frequently used'.[0] CBP doesn't have that power and it's unthinkable they'd be given it.

Why is the far more limited CBP power (which it shares with almost every border force in the world) mentioned here every 2 weeks or so, while HMRC's very broad power to search your house is ignored?

[0] https://assets.publishing.service.gov.uk/media/5a7e1bbae5274...