Well who would've thought the value signaling politics of today would be absurd and lack any intelligence or foresight.

There are also sacrifices to be made by everyone, if you want less immigration you'll have to get off your ass and do those "jobs you'll never lower yourself to" yourself, if you want sustainable energy you might want to start building nuclear plants with formally (as in mathematically) modeled, verified and tested components, and you might also use the same phone for 5 years and not have a phone, a tablet, a tv, a desktop and a laptop for every member of the family, 3 cars, always on AC, etc., might use blankets for heat or open your windows for cool air or you know just sweat and drink water, etc. when your only problem in life is whether you'll use a plastic bag or a paper bag when every single product you bought contains 10 smaller products individually wrapped in plastic and every electronics you own (mainly for entertainment since 1 laptop is enough) uses hundreds of materials all shipped across earth to a country that assembles them using almost slavery and ships them back.

But no, you see the right advocating for X thing but not wanting to do anything about it, and the left is advocating for Y but also not wanting to do anything about it, and everyone is trying to convince everyone else that they're really contributing to X or Y cause.

The first thing to do to cut on over consumption and thus energy use would be war, because if you're unable to stop yourself from attacking a country on the other side of the world, kill a million civilians, all for oil, aka murder to get cheaper oil, then you're probably unable to sacrifice personal comfort for a greater cause, and will settle for virtue signaling and larping as a good person.

Now I don't think this problem can be solved, because we're first of all human, aka primates with greed, violence and lack of care for anyone or anything with a DNA too different from ours, and until we start to discuss these things as they are and not as we want them to be, then our decisions won't go anywhere. The other issue to solve this is democracy, people are always dissatisfied and will always vote for the person who serves them best, right now, that's why we allow the central bank to print money and lend it to our government for interest, to be paid by our grandkids through taxes, just so we can have better roads today, and that's why we'll vote for the person who'll make us more comfortable now even if it means the people who'll live a hundred years from now will live in a worse environment than the one we live in.

Someone needs to invent a new protocol for politics, that would serve us now and in the future better than our current system does, but that's super hard and would make some other protocol like say bitcoin seem like a 3 year old's solution to a trivial problem.

And I didn't even talk about how 100 IQ is the average that that means half the population is under that and can't even conceptualize of things more abstract than "do this now" => "experience consequences tomorrow", and wouldn't understand or care about sacrifice today for future generations, unless they're pushed towards it by social shame and other powerful human motivators, but then they won't understand anything deeply, and will spend an hour separating paper from glass for recycling because they genuinely think it's important, but then take 6 flights for holidays, drive huge card, order useless shit online, change electronics every year, because those are also pushed with powerful human motivators like social status etc.

So yeah, there can be no simple solution like vote for Mr. A to get result B.