Is it really safe to go outside in public place without a mask??

We all know that Face masks prevents the spread of virus but dozens of people and there groups are not wearing them.

Anti-maskers says

“Covid-19 is a lie”

“no masks”マスクを外そう

“stop pcr”

マスク危険”mask is dangerous”

These are the slogan of Ani maskers.And some of them believe that corona virus is a hoax.

Is it really safe to go outside in public place without a mask??