From that article: "However, the conditions required to harness aneutronic fusion are much more extreme than those required for deuterium-tritium fusion such as at ITER or Wendelstein 7-X."
https://en.wikipedia.org/wiki/Aneutronic_fusion#Technical_challenges
My father lead the team at Oak Ridge National Laboratories that designed the superconducting magnets used to contain the plasma in the fusion reactor. Admittedly this was in the 1980s. and there have been some advances in superconducting materials, which was his specialty. However, none of those material science changes have done anything to change the basic design of the fusion reactor, namely the magnetic containment of highly charged plasma.
My father, and the others on his team, all of them believed that fusion held very dim prospects, and they all believed that the answer lay in improved fission reactions ALONG WITH improved electrical distribution networks where much of the electical power gets lost through resistance of transmission facility.
My father did a great deal of work in superconducting power distribution; however, superconducting power distribution is an "active" rather "passive" system meaning that you need to staff a superconducting power distribution system whereas conventional electrical power distribution are either buried in the ground or strung on tower, and then you just let them stay until something interferes with their operation.
It may be that the time has come when the requirement to staff superconducting power distribution systems have sufficient added benefit because they reduce the amount of power that needs to be generated. and therefore reduce the carbon foot print of the power generation, or perhaps magnify the effect of a low carbon foot print of an existing low carbon emitting power generation facility.
Consider a superconducting power distribution system which would carry power from the New York Power Authority's Hydroelectric Plant at Niagara Falls along the same path taken by the old Erie Canal, and now the New York State Thruway from Western NY to New York City.
Perhaps the fact using such a superconducting power distribution facility would deliver the eletrical generated at Niagara Falls to New York City without any power loss, and only comparatively negligible power required for the refrigeration system to maintain the superconductivity of the power cables, and now the reduced carbon foot print of the hydroelectric power system is reduced even further on a comparative scale.
Instead of spending vast quantities of money to try to make fusion work, spend the money instead on improving the electrical power distribution grid, and improving known and well understood zero-carbon emission electrical power generation such as nuclear fission.
Our priorities are way out of whack, and fusion should be way down the list given how soon it could have an effect on reducing the carbon footprint of electrical power generation and distribution.
That is also why I call fusion a fraud. It defrauds funding more realistic and immediately applicable technologies to improve the reduced carbon foot print of electrical power.
This video is five years old and still worth watching: