On exactly what grounds should any one be "demanding" the
release of these "anti-racists"?! Is it because their social
values and beliefs exempt them from having to obey the laws
of the country and state?

If they were charged the police likely had very good reason
for doing so. To let them off sends a message that acts of
violence are lawful provided one has what mainstream society
considers a valid cause for righteous indignance.

If the "Nazis" wre not charged there is could be only one
reason for it and that is that no one could find any
legitimate reason to do so. Make examples of these so called
"anti-racist" imbiciles and lock them up for a good long
time!