You mean like people calling it a premeditated terrorist attack
I do not know to what extent it was or was not premeditated, although I suspect that the perpetrator went to Charlottesville seeking a confrontation of some kind. As for ‘terrorist attack’, there seems to me to be little difference between this and other deliberate attacks using vehicles, e.g. like the one in Nice.
EXploiting the circumstances? You mean like…criticising Trump for failing to condemn one side more than the other?
Take a look at who has been criticising Trump: Orrin Hatch, Ted Cruz, Marco Rubio etc. These are not hand wringing lefties – they are right wing Republicans and they and others are speaking out because they recognise that the situation is extremely serious and the need to make it clear that all American leaders and politicians condemn the actions of the white supremacists transcends party political interest.