I'm already said how I see it, I'll try from the other angle: instead of having chance to softly integrate ppl who are really close to their main ethnicities(yea, yeah, I know Balts prefers to think about themselves as about much more teh europeanz that those Ruski barbarians, even though basically their faces and skin-color are very close to each other
), and thus have source to think seriously about common european demographic problem later, Baltic states from the beginning were using the "inner-enemy"(Russians) theme for nat.building and freezing social conflict. While in fact with our current and future national system in Russia - Russians in their republics are just abandoned and could be easily assimilated in 2 generations. And even the first one could be been thinking about Estonia as their real home already, not Russia since it's not Russian national state.
Maybe it's even good though, if we would finally get rid of the majority of sovok-minded with governmental power in terms of national policy and somehow will solve question of ineffective budget-spendings - the more ppl would come here. But for those ppl who were lost, humiliated, it's not. They deserves better treatment.
Not to mention that in 1000 retrospective - it's every time ends bad for such systems and ppl. C'mon, just think about - it's the ppl with same blood as those who fvcked the greatest horde back to it core and go further to the overseas, same ppl who brought Hitler to a suicide and soviet system to collapse. Who knows how the story would turn once again. Being in charge of small nation - it's better not to use the part of bigger one as pinata, even and exactly when it's not in good shape.