If we had created a broad-based constituency for climate action, say, working with industry to build nuclear power or supporting natural gas to displace coal or even funding more conservative think tanks, then we'd be in better shape.
A microcosm of this was local and federal politicians driving Elon Musk to the Republicans. Labor issues and regulatory roadblocks took precedence over supporting Tesla, forcing Musk to seek Trump as an ally. This immediately poisoned Tesla's reputation with liberals and probably set back adoption of EVs in the West.
If climate change is really an existential issue, then we should be willing to compromise on non-existential issues to build a broader coalition. But no one is in the mood for that.