If you are arguing that standard of living today is lower than in the past, I think that is a very steep uphill battle to argue
If your worries are about ecology and sustainability I agree that is a concern we need to address more effectively than we have in the past. Technology will almost certainly be part of that solution via things like fusion energy. Success is not assured and we cannot just sit back and say "we live in the best of all possible worlds with a glorious manifest destiny", but I don't think that the future is particularly bleak compared to the past
I worry that humanity has a track record of diving head first into new technologies without worrying about externalities like the environment or job displacement.
I wish we were more thoughtful and focused more on minimizing the downsides of new technologies.
Instead it seems we’re headed full steam towards huge amounts of energy use and job displacement. And the main bonus is rich people get richer.
I’m not sure if having software be cheaper is beneficial. Is it good for malware to be easier to produce? I’d personally choose higher quality software over more software.
I’m not convinced cheaper mass produced clothing has been a net positive. Will AI be a positive? Time will tell. In the short term there are some obvious negatives.
Cars make people unhealthy and lead to city designs that hurt social engagement and affordability, but they are so much more efficient that it's hard not to use them.
And then the obvious stuff about screens/phones/social media.