banning big SUVs & Trucks is insurmountable not impossible - since you're trying to have people/organizations act against their own interests.

it's one of those cases of stated preference vs observed preference:

for individuals big SUVs/Trucks feel good to drive, are fast enough & come with street cred. Notice I put the word "feel".

for cities/state governments - big SUVs/Trucks mean increased taxes since they consume more gas - thus increased revenues from gas taxes

for the automakers as the article stated - 90% of their profits come from big SUVs/Trucks that American automakers have stopped making sedans. Profits from big co's is a bragging point for the federal government too.

Now legislation would've to try for all those people to act against their own interests ? Unless some geopolitical event happens - that's unlikely.