It's a feedback loop all right, but some parts of it are easier to nudge than others. Policy tends to be fixed, as it's based on fixed characteristics of human brain and fixed phenomena like those explored in game theory. More effort put into politicking will not yield better results (EDIT: it might do some good; see downthread). Technology is mutable, in the sense that more effort (and money) put into it yields meaningful change, that can also shift policy.
Note that your argument right now boils down to "we need to invest more in right technology"; while the decision is political, it's literally the opposite of what people mean when they say something is a "political problem" and not a "technological problem".
"More effort put into politicking will not yield better results."
I disagree strongly. It's my belief that this attitude is a big part of the reason why we're not actually doing anything.
Depending on the poll and the degree of action requested, a small majority of Americans or a large minority supports climate change action. Policy action is very possible.
I still feel that investing in more political activity will achieve little, as that activity will get drowned in the noise. I'll think more about it though - I just recalled a good argument for your position: the NRA. From what I hear, the NRA is a small minority, but their success comes from being the only ones bothering to organize and push for their point of view.
Note that your argument right now boils down to "we need to invest more in right technology"; while the decision is political, it's literally the opposite of what people mean when they say something is a "political problem" and not a "technological problem".