The ONLY reason it is controversial is because antifa and BLM will turn the rally into a war.
You can count on that.
Two trigger words: Patriot and Prayer.
Oh, and there will most assuredly be white people there.
You left out “...fighting big government...” Antifa types will consider that a directed threat to them and are certain to respond with violence.
The ACLU is going to need to hire a lot more lawyers because cities all over the country are going to start prohibiting assembly by any group that has non-leftist white people in it.