Anybody who thinks you can buy anything cheap that's made in Britain is dreaming. Here are some examples from my industry:
Glass perfume bottle 100 ml: UK price: £0.60, China price: $0.10 (i.e about £0.06).
Small sachet filling machine: UK price: £45,000. China price: £10,000
The same scale of difference applies to almost anything. Without Chinese factories most British "manufacturers" would have disappeared years ago.