So, if Conrad Black had been apprhended at an airport in Canada, instead of at his mansion in Florida, when the feds charged him with embezzlement(or whatever it was), you'd have said Canada shouldn't send him to the USA for trial, because the Americans don't really care about us?
To be perfectly honest, I would recommend Canada decide on a case-by-case merit.
I think financially/politically there is a heck of a lot more at stake for Canada
to stir up a hornets nest with China over this than would be the case with Black.
The U.S. would get over our rebuke the next day, if not before.
I'm sure you could come up with a better analogy?