Hahaha
You just threw it in hoping people would take you seriously. You are hoping to frighten people into not criticising the actions of the State of Israel.
Since it is not UK law, it is irrelevant to your desire that people who criticise the actions of the State of Israel should find the police knocking on their doors.
Criticising the actions of the State of Israel is not a crime.
I realise you find that a great disappointment.
Get over it.