Firstly, I didn't make the comparison between saying 'yid' and being run over by a lorry, if you read back. I simply defended my point of view against that analogy.The police responding to a sensationalist twat's decision to make a public fuss about yid chants, by deciding to arrest a couple out of thousands, for something the police have always been happy for us to do, week in week out, and have been happy to happen since, is not the same as a lorry driver driving his lorry.
The police say "ok this week you'll be arrested for it, even though all other times it's been ok and if you do it next week it'll be fine". That's bullshit, just another example of the vacuous gesture policies that scar our politics. Anyone arrested has a right to pursue their grievance against the spuriousness of the arrest.
The fact the police said "we will arrest you this particular week" doesn't mean it's justified or ok. They aren't our parents, and we're not three years old.
Secondly, however you view how the police dealt with the scenario, matter of fact is they had pre-warned everyone that they would be at risk of arrest if found chanting yid. So how can you complain when you get hooked out of the ground for that very 'offence'? I'm not defending the police here, as I am very pro yid-chanting, but if an officer of the law told me "If you do that, I'll arrest you", I done it and was subsequently arrested, I can't feel bitter about it!!
Your last point is bizarre to me. They aren't our parents? We aren't three years old? Fuck it, I'm going on a killing spree Grand Theft Auto style then. Who can stop me? Not the police, they can't tell me what I can and can't do. And I'm an adult. I can make an informed decision all by myself, and if I feel a few dozen people need to die in order to meet my day's expectations, so be it.
I'll explain that to the judge, get it thrown out, claim compo and move to The Bahamas.