If your country decides to attack another country then your country is an agressor, but if the defending country comes and blows up the street in front of your home you don’t think you’d feel like you need to defend not getting your home blown up?

Question isn’t about attacking in Ukraine, question is about defending Russia from Ukranian attacks. Hence it would be a defensive motivator when your family is about to be bombed by Ukraine in Russia vs you invading Ukraine.