Re: The problem with your logic is that resisting the arrest is the crime.
1) Be polite.
Good advice.
2) Say nothing, don't explain, don't justify, silence is your right. "No Comment", "Am I free to go?", "I would like legal representation" are the only three things you should say, and silence is better than any of them.
Bad advice. The courts can an do take a dim view of a "no comment style interview" (text lifted directly from paperwork sent to the court by the CPS on one of my trips through the CJS. Co-operating, but only so far as to the advice of your solicitor, is always the better plan.
3) Ask for a lawyer, check they are in fact a lawyer and not plod.
Utter nonsense. It is illegal to pretend to be a solicitor or a barrister.
http://www.sra.org.uk/consumers/problems/fraud-dishonesty/bogus-fake-solicitors.page
https://www.legalchoices.org.uk/what-to-do-if-youre-not-sure-if-the-person-youre-dealing-with-is-a-barrister
4) You don't have to assist, don't give your name, or any other information. Let them read it off your driving license etc other pieces of ID on your person.
While this may be notionally true, you MUST give your name at the first court appearance, so refusing to do so ahead of time can only result in your being denied bail and held on remand.
The advice given by sed gawk guarantees your arrest and all but guarantees your detention until a court hearing may be scheduled. At best it's poor advice, at worst, it's rank stupidity - depending on why you find your self dealing with the police.
5) Don't consume any food offered to you if at all possible, water is fine, but they are not there to help you, they are there to provide information to CPS who will decide if "reasonable prospect of securing a conviction", sadly it doesn't matter to them to convict the right people.
Sorry, but that is just plain wrong. My best friend is a serving police officer, and he cares very very much about securing convictions against the right people. Everyone makes mistakes and the consequences of a police/CJS fuckup are severe, but pretending they don't care is plain ignorant and wrong.
6) Don't get lippy, 1096 deaths in police custody since 1990, zero convictions. https://www.inquest.org.uk/deaths-in-police-custody
Statistically true, but the statistic doesn't say what you're pretending it does. Take 2017 for example. Of 23 deaths, 3 died in a cell, 5 died in hospital having become unwell in the cell, while 17 had mental health, rug, and alcohol issues involved.
The fact is your most likely to kill yourself rather than be killed by the police while in custody.
https://www.theguardian.com/uk-news/2018/jul/25/highest-number-of-people-in-a-decade-die-in-police-custody