I’d have no problem with this if it meant their trolls stay the fuck off our Internet and leave us alone
One imagines that it might have some negative effects on people in Russia, not all of whom are trolls.
It may also have secondary effects on people outside Russia if the leadership wants to do something that people outside Russia don't much like, but where public opinion in Russia is a constraint on them. If Russia builds a system that is aimed at constraining the public's view of the world, then presumably the views of the public will shift towards whatever the people who are presently running the government in Russia prefer.