>>48065
>Knowing that the changes would benefit an outside force, should those citizens act on their beliefs? Should they seek foreign support for their cause? Should they accept foreign support without asking it?

It depends on their cause. Avoiding change just because foreign power wants it looks similar to stop washing hands because bad people often do it too. Citizen must try to analyze why foreign power wants this change and think about consequences. Maybe it is benevolent change.

>Should the preservation of current system and sovereignty matters

Without specific details it is too broad question. Change in favor of foreign power doesn't always mean losing sovereignty. System may use this argument to preserve itself, but system isn't neutral about that matter.

There is another thing: in modern world local government, even not influenced by outsiders (let's imagine that this is possible), often similarly foreign to average citizen as truly foreign government. Although it happened in past too, like in Western European feudal times, when average peasant didn't see much difference between different lords, because they always want to extort peasant's good and nothing more. So original question also has another aspect: do current system really represents these citizens? The less it represents them, the easier is the answer.