That's incorrect. You're muddled between cause and effect. The changes in non EU VAT are a result of leaving the EU. The charging of VAT on Chinese imports is a UK policy to prevent Chinese sellers undercutting domestic suppliers by 20%. HMRC has been playing whackamole for some time on this.
Nope, I didn't say anything about cause and effect. What I said was that the only way of not having to pay import VAT was to be part of a customs union. Which is correct. The changes to how VAT is charged on non-EU imports isn't something I mentioned at all.
That's incorrect. You're muddled between cause and effect. The changes in non EU VAT are a result of leaving the EU. The charging of VAT on Chinese imports is a UK policy to prevent Chinese sellers undercutting domestic suppliers by 20%. HMRC has been playing whackamole for some time on this.