Earlier quoted context omitted.
First we have to convince people that they will be better off if they have to pay a lot more for their toy trucks. That is the step 0 that nobody seems to know how to solve. Hollering about how the oil company CEOs are evil is not going to be the thing. It's already been tried. People will nod right along until you get to, "and that's why your gasoline needs to cost $7/gallon."
Trucks are 3.4% of US GHG (~60m trucks at 3.51 megatons CO2/yr is ~211 megatons CO2/yr out of 6,266 megatons from the US total). If we never started another pickup truck ever again we're still 96.6% away from zero emissions. It's also worth saying those people would probably still drive something and the odds of that car being zero emissions is very low, so this is pretty charitable. Anyway, this kind of finger waggi…
Also not sure where you got the 3.7% number, but light duty trucks overall contribute around 10.4%. This includes some fraction of SUVs (those with truck-like drive trains weighing over 6000 pounds GVW) and minivans.
That being said, decarbonization of the truly necessary energy consumption is also a requirement, and that is expensive too. You need to convince people that they should want to pay for it -- no the billionaires cannot pay for the whole thing, for inflation-related reasons that are too complicated to get into right now. (The basic thrust of the argument is that US construction and industrial capacity is already highly utilized, and that allocating more workers to decarbonizing will necessarily drive up the cost of everything else, regardless of who nominally pays for the work.)