Of course it's an easy cop-out, to say "well the planet's doomed anyway, let's book those flights to the Maldives! (Before the sea swallows them)". Or to deny responsibility by saying "Why should I change, look at those private jets!".
I agree when Kurzgesagt argues, the fix is to push for political change https://www.youtube.com/watch?v=yiw6_JakZFc . I like meat, petrol cars and flying vacations, but if they get heavily taxed to help save the planet, I'll sign up for that!
I'll grumble that meat is such a luxury, but that's how it's supposed to be...