I simply fail to understand people obsession with fusion. We have failed to take advantage of fission. Fusion really does nothing remotely practical that Fusion doesn't do just as well and actually far better. Fission does it with 60-70 technology. Fusion takes incredibly expensive future technology.

Fusion has no practical application other then some super advanced spaceflight situations maybe.

Fission is 10^12 more dense then oil, Fusion gets that to 10^15. If we are not willing to make the effort for 12 orders of magnitude, why would anybody care about a couple more?