public transport isn't really an option for me (though I regularly advocate for it in my area and vote for people that will fund it), so I go the route of inexpensive used car and avoiding driving as much as I can

I'm all for alternative transportation but that blanket statement is closed minded.

Do you own clothing? Do your groceries come in packaging? Do you live in an insulated, electrified, and plumbed dwelling? To dismiss someone with 'buying x supports big oil' ignores the lack of viable alternatives and the society we have to live in.

It's the same line of thinking that leads talking head of corporate media to question Stop Oil protesters about the plastic buttons on their shirt as if exemplifying hypocrisy.

Many people do not have their needs met in terms of public transport, cycle infrastructure, or even sidewalks. Buying an old combustion vehicle for a few thousand dollars is leaps and bounds better than spending tens of thousands an electric vehicle.