Not true. He's describing people who are committing criminal offences online (which have been illegal for a loooooong time) and people who are rioting as right wing thugs. Which, given their targets (Muslims, asylum seekers) is manifestly exactly what they are.
Has it escaped your notice that a Labour councillor has also been arrested for incitement?
For the hard of thinking at the back: Freedom of speech does not mean being allowed to say whatever you want, nor does it mean freedom from the consequences of your words.