It's one of those pitfalls of being rational, educated, and empirical. You think you can persuade people using evidence, logic, the kinds of thing that ought to be persuasive but are only persuasive if you're rational, educated, and empirical.
So it turns out it doesn't work. Because they don't care. And honestly, even the best willed for us all is often a victim of our prejudices, and it takes a lot to recognise that even if you're willing and able to do so. Most people don't bother to try.
But anyway, they want to drive their car everywhere, and that's their life, and the proposals threaten that. So yeah, that gets their back up. Even a rationale rebuke will likely do little more than intensify their ire, because if they don't have a counter-point, they have anger to fall back on.
I remember years ago when we lived in Ealing a street slated as a 'home zone,' angry neighbours coming around with a petition. I politely and reasonably pointed out at it all sounded quite good and told them that no, we wouldn't be signing. She was furious and shortly afterwards we started to get strange angry letters through the letterbox about 'some people' in the area blah blah blah.
I sent a supportive letter to the London Borough of Ealing and we got a home zone and the world didn't end. Dunno, if it's still there, basically some planters, diagonal parking, and generation a batch of things to make the street far less desirable as a rat-run. The only contentious thing was that they'd lose a couple of parking spaces.