No, harassment is not free speech. The only concern is the possibility of an OVERLY BROAD understanding of what harassment constitutes.
So for instance, if a pro-lifer distributes a flyer or literature not far from an abortion clinic to disuade a woman from aborting her baby, is that harassment?
The intent might be to protect conservatives and parents, but there could be unintended consequences.
That’s why it’s defined as narrowly as it is.