I think the inherent critique in Solarpunk is that our current way of doing things is unsustainable for any decently-sized chunk of the global population - that climate change and general environmental collapse are signs that capitalism as we’ve run it so far cannot continue. If you take the critique at face value, it becomes less of a trade-off, because we don’t really have the thing we think we’re trading against: we’re not trading a successful capitalist future for a gamble on sustainability, we’re trying to find a successful future to begin with.