Why?? Every time someone uses political violence the would be dictator becomes more popular and he can make the state more repressive. Even right now, there will be idiot undecided voters that will change their vote to him because some idiot tried to kill him. There are really no upsides to attempting to remove tyrants with guns.
I don’t believe that, even in the face of a full coup, (gun) violence will solve any issues. There’s just no way that a majority of people support a violent militia taking over power of the government, no matter how illegitimate some think that government is.
As examples, look at the recent coup attempt in Turkey, or the Wagner uprising in Russia. In both cases the violent uprisings were used by the dictator to cement his power. Guns will not help you.