The US is by far the most likely hostile state actor. They are the ones that benefit from the protesters being seen as more radical and destructive than they are, while Russia or China would be working towards hypothetical future benefits.
The only place I see where there is concentrated effort to equate protestors and rioting is on the twitter left.
It doesn't matter who is looting or causing damage to property if their actions are being used to justify retaliation against every protester.
Separating the "fringe elements is being done by the media and the government to allow more authoritarian responses. It is not being done out of goodwill for the law abiding protesters.
I mean it doesn’t help Trump. He’s kind taking a hands off approach so far.
But it also doesn’t help Biden. He hasn’t said peep. He’s holed up and keeping quiet.
It would help countries the US is nettling but I’m not sure China has much to gain (maybe tit for tat re Hong Kong) Russia? The whole story was they colluded with Trump... so now they want him to lose to Biden? Whaaaa...