That's not how international relations work. Appealing to some arbitrary set of conventions (that you prove in your own comment don't get followed) and then complaining that the other side is "uppity" does nothing.
It’s also unclear why Taiwan should be “recovered” at all, they were two factions of the cultural revolution sure, but that doesn’t mean they should be unified now any more than the UK should “recover” America.
we can of course disagree with china. but ignoring what they want is...i don't know...naive?