No. It is a gross exaggeration by those who want it to be true.
I was not there and I don't know for a fact that it did not happen. I presume the studio person who composed the banner was not there and did not know for a fact it did not happen. However, Fox needs to be more careful with reporting, lest Fox News generates fake news.
I am not defending the 30-40 white nationalists who were at the original Charlottesville rally. But it should be reported accurately!!!