What the hell? Are you engaging in some weird "anti-balticism" or something? I just had to make up a word right here to describe something so weird.
Because Russia invaded, subjugated and dominated them for decades. Estonia is an independent nation, and they had until a couple of years ago, some monuments to Vladmir Lenin lying around. A foreigner. A Russian. Like what the hell? And then Estonia gets electronically assaulted, by Russia, for having the gumption to throw down these monuments to a foreign leader whose successor conquered them?
They're entirely right to resent Russia. They are entirely in the right. Russia did that itself.