Mikhail Gorbachev has died

My late grandfather was a really good and kind man. He never argued or blamed people.

The only person that I remember that my grandfather had really negative feelings for was Gorbachev.

I never learned why.

Was he Lithuanian by any chance? Gorbachev killed protestors there, arguably the biggest stain on his otherwise surprisingly decent record.

Or did he sympathise with communism? Gorbachev arguably accelerated it's decline.