> But I am terrified of the increasingly bleak looking future, and despite putting a lot of effort into conservation and living with as small a footprint as possible, I don't see much hope for our broken civilisation, much less our species
Yeah, I struggle with that too. At the same time, there is a huge amount of opportunity for average people to make an impact in whatever small sphere of influence we may have.
If I always frame my efforts in relation to the entirety of the world's social and environmental problems, of course those efforts are going to seem insignificant; but I think that's as misleading as, say, viewing my personal spending habits as inconsequential based on how much they impact the global economy. Small changes in your local community or social circle really do matter!
That's one reason I like platforms like iNaturalist: it's a good tool to encourage others to simply learn more about the living things around them, which is a significant step in nudging someone from indifference toward being an advocate for nature.
Sorry if that's not helpful, but I'd really like to encourage you to keep doing what you're doing, because it probably matters a lot more than you think it does (especially to all the creatures that live in and around your larger-than-average backyard!)