Every cent we invest in nuclear research is lost to the immediate solutions.
This would only be true if 100% of GDP was spent on climate solutions. In reality, it's not a zero sum game like this. If some people get excited about nuclear and want to invest while others are excited about wind and solar, then that's great. The more the merrier!
No, nuclear is the only way forward. We know it can work. We need to invest now. Solar and wind cannot power our collective needs, and even if they could, to build it out would require such a massive doubling-down in fossil fuels that the planet would be one big desert by the time we finished.
Do you have a peer reviewed paper or two "proving" this?