There is no long-term viable alternative.
I’m a firm believer that “if you can’t see it you can’t be it.” Being frugal, considerate, and low impact doesn’t gather much attention compared with being brash and objectionable, so (with a few exceptions) those that are don’t often become role models.
No there isn't an alternativ, but it's not a popular message compared with childish
'i want it now so I must have it now, and why should I care about the consequences?'
It's a harder message to sell low to moderate consumption, as by definition it sells less stuff, makes the capitalists less rich.
So the 'marketing budget' for buying, and using far less will necessarily be lower.
It is gaining some traction among the more thoughtful, and intelligent of our population though, but it takes time, it's frustratingly slow.
There has been a recent surge in interest in things such as regen agriculture, for instance and other more low input* ways of doing things, so all is not lost yet.
*And for anyone wanting to 'pump some musculature' there's plenty of opportunities for doing just that out here in the fields..
What I've been doing for decades, has now become a little bit 'fashionable' and is getting more exposure.
Grassroots and civil society groups have some traction, but not enough just yet.
Of course there's lots of other political, economic, and social barriers to changing to better ways of doing things.
And most of that change making is really only possible at scale, at a governmental, global, and corporate level, so we have to have a voice and presence there too.