We won economic offer there, so there is that; EU isn't omnipotent.
Together with US (and perhaps even mostly by US efforts - remember "fuck the EU"?) they then did "revolution" instead; didn't do much good.
Yes, it isn't. With people who have actual prosperity of their own country in mind (rather then "whatever hurts Russia, let's do that") Russia has plenty to offer. See Germany going ahead with Nord Stream 2.The EU swallowing all the former periphery of the USSR leaving them to deal not with individual weaker countries but with the commission on any trade issue with their former subjects is not an existential threat.
It is a problem with you allowing them to be laundered there; but not existential problem either.The fact that all your assets are laundered here because noone wants to stick them in Ruble is not a problem of control either I guess.
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Growing misery "at home" is what makes people susceptible to propaganda.
You don't solve it by more foreign interventions.