The RoC (and the rest of the world) does see the north as it's territory, and it does see the TCs as it's citizens.
However, and in-line with international norms, those citizens that do not fulfil their citizenship obligations are limited to what they are entitled to.
For example, did you know that a citizen residing in the UK that has not paid the minimum national insurance can limit any out-of-work benefits they might think they are entitled to if they are unemployed?
Also did you know, that British ex-pats are not entitled to automatic health care on the NHS?
Now I know that you guys constantly blur the lines between the rights of the individual and rights of the community, but you are now attempting to blur the line between a citizen and citizenship.
But as you can see, being a citizen does not automatically give you entitlement as proven with the out-of-work benefits given to citizens residing in the UK that have not fulfilled their citizenship obligations by paying the requisite national insurance.
Now how difficult a concept is that for you to grasp?