Actually that's a reasonable point, sure. My counter is that it should be proportionate. North Korea? Absolutely, they're the absolute bottom of the barrel. Full economic sanctions are reasonable, I think we both agree.

China and Russia are not like North Korea though. Citizens generally enjoy a considerable degree of freedom of movement, economic freedoms and even rights to travel abroad. To the extent that these rights are curtailed or refused we should apply increasing degrees of pressure. In fact I think we don't apply enough pressure, particularly to China. There's a lot more we could do. What we should do is emphasise that crimes such as the oppression of the Uighurs should have consequences, and we're not doing that enough right now.

I'm particularly concerned about China's application to join the Asia-Pacific trade pact, the CPTPP. The association was founded by the US in order to form a united front against China, but the US pulled out in 2017. So we now face a real possibility a trade pact intended to contain China will end up helping China contain US economic influence in the region. Nice one.

Absolute bans and boycotts are simply not appropriate though, they would disproportionately hurt ordinary Chinese, including those under the worst oppression and would help China promote a nationalistic us versus them attitude. It would also remove any ability to apply increasing pressure to any further oppressive moves because we'd have no pressure left to apply. So I fully agree with the principle, you're quit right these regimes are our enemy, but not the all-or-nothing implementation.