This is the consequence when UK don't have ISA to lock up hate preachers for good. Including Jewish rabbis. Our ex colonial masters bequeathed SG a wonderful law
UK have hate speech laws.
Hate speech laws in England and Wales are found in several statutes. Expressions of hatred toward someone on account of that person's colour, race, sex, disability, nationality (including citizenship), ethnic or national origin, religion, gender reassignment, or sexual orientation is forbidden.