In Kevin Zhang’s quiet, two-storey house in Gloucester, hundreds of parcels blanket the living room floor. Each package – shipped from China – is bound for British customers who placed orders on Temu, TikTok Shop and AliExpress.Zhang, 49, moved to the United Kingdom from China’s rustbelt northeast in 2000, and spent years running a local nail salon. But in March, he sensed that something big was happening with China’s cross-border e-commerce platforms – and decided to make a change.He...