The murder of the 3 girls has acted as a catalyst. Maybe no connection between this event and Islam but plenty of other killings in the UK certainly have been directly due to radical Islamism over the last 2 decades.
Mass immigration seen at such rapid scale and pace over the last three decades has evidently failed and the people don't care for this blanket "hard-right" badge.
There certainly seems to be two-tier policing seen visibly and by the numbers of arrests of different groups, including the 73 year-old lady, recently. I agree there is no excuse for rioting but this is a natural reaction to governments that would rather take the knee for some but who don't listen others. Starmer is a fool.