Perfect is the enemy of good. I fly on rare occasions and I'm against flying unnecessarily. I drive a vehicle (shared with partner) because I don't want to be a hermit, yet I'm against driving in general (of course there'll need to be exceptions for when you're moving or too old to walk to/from public transport) and rather in favor of building out the more sustainable alternatives we have already today. That's not the whole solution because we will still run out of lithium etc., but it's the best we can do today even if it's not perfect