It's pathetic. So what that I killed your family - I brought you a cake (that i stole from a neighbor) - or if you did not like what I have done, then you should give me my cake back.
I think most Lithuanians would rather choose independence instead of Vilnius region + Soviet occupation.
constant whining about occupation, exiles to Siberia, etc.
These are facts of history - ignoring them wont make them go away.
such repressions took place all over USSR
Yes, but nothing like that happened in Baltics before occupation. Even when Kārlis Ulmanis got power in military coup - he killed no one.
Soviet occupation did not give us anything good - so it's no surprise that we are not particularly excited about it.
The general attitude towards Russians
I do not hate Russians - it's Putin's regime that I can't stand.

It is no surprise that Soviet Union disintegrated. Sad that it did not happen sooner.
It was not a normal country, but a giant prison.