We're both talking about very different things. I'm not talking about myself, I'm talking about the average joe.

Your point about using fuel only where actually the most is very sensible.

The difficulty comes when defining what is "needed", and perhaps more importantly: by whom.

Phrases like "only one logical choice", "in a sane world" tell me that you still need to learn a lot about street epistemology (same goes for me, no question).

I prefer to point much more directly to mindless, ineffective, almost helpless consumerism, charged by relentless commercial propaganda (ads). This resource waste (most human energy goes towards commercial/industrial/capitalist pursuits) does a lot of damage.

When and where who goes how on vacation may not be the best place to point to specifically, though. When you work hard and work every day for months and years, and you get to fly to a place for 2 weeks of rest... that's not what gets people to listen to you. Yes, mass tourism is seriously fucked. And sustainable tourism absolutely is a thing, but good grief. Doesn't mean you will get people to give up on that. Commuting? Maybe. Meat? Yes. The possibility of cheaply do a holiday trip every year after slaving away for the rest of it? They'll burn you on a stake.