I think the average American or even maybe Chinese citizen has a much higher footprint than me these days. I could do better, but to do so would impact my life negatively, win me nothing but smug self-indulgence and change nothing in terms of the long term outcomes of this planet.
So yea, what guilt, what "moral cowardice"? I wouldn't sneer at someone with a higher footprint than me (outside of maybe SUV owners because srsly wtf is that shit) because its collectively where we're culpable, not individually.
Its 2026 and like 30% or more of the citizens of the global super power don't believe in global warming. We're fucked and nothing I do or you do is going to stop that outcome. We probably should start seriously thinking about geo-engineering instead of worrying about moral cowardice.