It is safe to protest publicly because the majority of the population are not going to go on shooting and killing sprees. It is just a once in a million kind of thing. It wasn't even the protestors that were being shot at to begin with so the protest was not the target.
Although it should be safe to express one's thoughts, it is generally not so in this day and age. Violence during protests and rallies has become more commonplace, as many people feel strongly about their political views and will not tolerate anyone who openly opposes their ideals. As such, with protesting comes the danger of being attacked.
Five Dallas police officers were killed and seven others wounded Thursday night when sniper fire turned a peaceful protest over recent police shootings into a scene of chaos and terror. They wanted to kill white officers.The eruption of violence shows that it is not safe these days to protest publicly
Protesting in public is no longer as safe as it used to be. Many mass protests have turned violent in recent years. The tragic shootings of Dallas police officers at a Black Lives Matter protest further illustrates just how dangerous protesting in public can be. Therefore, one must take a lot of security precautions into consideration before deciding to protest in public.