There is always, always, a subtext of "if you don't wish to cooperate, I may need to exercise my discretion to ...", with the ellipsis being anything from literally tearing your car apart in a "reasonable suspicion" drug search, to some made-up traffic infraction, to anything else that police are trained to use as coercion.
Just because you have some theoretical rights that a judge may at some point months later grant you, doesn't mean the officer can't violate the hell out of you right now and probably get away with it - and end up getting a baseless conviction, or a paper trail in police records, or just make you late for your job interview.
I haven't had many, but I had a few when I was in college. When you lawfully refuse a request from the police, they don't just say "ok" and move on. They apply all kinds of pressure. They make veiled threats, they detain you longer, they get angry, they scare you. It is a lot easier to say what you would do while you are safe at home behind your keyboard.
Those ways of applying illegal coercion also break down as more and more people realize their rights and refuse to comply. The more people who force police to act illegally, the more risk there is of trouble for the cop. They can get away with it better if they don't have to do it too often.
So no, I'm not at all disregarding police coercion. However it has not, does not, and will not convince me to surrender my rights.
If you'll forgive me for saying so, your response also is a symptom of living in a police state: regardless of what is right or legal, you expect the police to act with disregard for it and to suffer no consequence for their actions. It's a common-enough belief, but is not universal in civilized societies. This is wrong, nearly as wrong as anything can be in a democracy.