What I am trying to say, is that to fight climate change lifestyle changes are required. To get those changes done in a demicratic fashion, you need to convince a majority of people to actually make those changes. Part of that is making them without the actual law, to show that it is possible.
Just take you as an example. You want I presume a combustionengine ban. However that ban would cause you massive problems, as you can not get to work or buy food without a car. I would say that, if true, those would be amazing arguments against such a ban. For me the argument is much easies, as I would do more or less fine with that law, as my lifestyle is already pretty low car.
Remember when we tried to get people to wear masks during the pandemic?
Remeber the US president refusing to wear a mask in public? Johnsons parties during covid? There was a lot of that bs.