GP's key point is that individual action would not be enough and you're not actually addressing that argument by just saying that not everyone wants to be political and that other choices would be nice.
Getting hit at 25mph is likely survivable if hit by a sedan (you'll land on the hood), but an SUV often flattens a person, as the force is applied to their mid to upper body rather than their legs.
Car accidents are also much more catastrophic, our current testing in the USA only tests SUVs against SUVs, sedans vs sedans in crashes, and impact absorbers on SUVs are often higher, meaning the SUV will end up atop a sedan in an accident.
These negative externalities are poorly regulated, permitting these needless deaths and injuries to occur.
The third link is a tracker app.
https://climatechoice.co/ (plenty of small issues up for grabs https://github.com/impactmakers/climatechoice/issues)
https://fixathon.io/ (more sponsorship opportunities available, get in touch. https://bit.ly/fixathon-sponsor)