As if the US would support such a movement. They only support right wing fascist dictatorships. Or “democracy” if there’s resources to exploit.

Does Serbia have any special natural resources we need to “spread democracy” for?

Eastern European countries have very corrupt leadership. The EU provides those leaders "development loans" but they are really just bribes to oppose Russia. All the money goes into corrupt pockets and their civilians are reptessed. The EU looks the other way because it is convenient.

if the US has its grubby hands on something outside their own country, we can be pretty sure they are up to no good. given, you know, their history fucking everyone else over.

doesn't seem to be the case here, thankfully.

Because it has worked so well in the past...

It would be outside interference. This seems to be organic though, hence why it's not being covered much by western msm.