One of the more interesting “scientific” assumptions is the idea that the Sun is powered by a nuclear fusion core. The problem is explaining variations in the output of this fusion reaction to produce the sunspot cycles, (and other related ones), and another of how to explain occasional still-stands of the solar wind. What’s moderating solar output? Angels with graphite moderating rods?
The alternative explanation is that the nuclear fusion model is wrong and what known mechanism could replace it? Notice that nuclear fusion has not yet been demonstrated to be a sustainable replicable reaction – the US has been working for at least 50 years on the TOKOMAK project with not success in sight.
If the sun is an electrical phenomenon as advocated by the plasma physicists, then mundane solutions become possible. Solar fluctuations then are the result of changes in electrical flux of the galaxy-sized Birkeland currents powering the sun.