Can method against street demostration be used on Mat Rempits?

After the last 2 street demos, it suddenly appear in my mind that we can actually use the way authority used to counter the street demos, like water canon and baton charging towards crowds.

It has been one too many cases involving mat rempits and it is now reached a worrying stage. Yet authority just sit back and do nothing about them, while they are all well prepared to countered those peaceful street demonstrators. Why? It is a very simple answer to that

Mat Rempits are dangerous and they could hurt whoever stands in their way, whereas peaceful demonstrator just won't do those coward acts. Mat Rempits are a bunch of brainless, stupid idiots who just take things into their own hand. Demonstrators were just trying to convey messages to government or aithority, yet they were treated in a bad manner.

If ISA seems street demos as illegal, is that mean Mat Rempits are legal? Can't they do anything about them? I believe if the authority starting to use the way they countered street demonstrators on Mat rempits, surely they will be put off by the tough action taken simply because nobody wants to die.

If no action is taken, mat rempits will growth even further. In saying so, I believe the one of the reason ISA do not act on mat rempits is because 99.99% of mat rempits are "Bumis"