Solar flares, CMEs, impacts, radiation. Come again? We see this happening. If that happens for about 100 million years you better believe the Sun will be way less massive. Esp when it moves into red dwarf stages of evolution when the core begins forming and the field becomes global. It will become a flare star and then lose mass at even higher rates.
Nope. Numbers matter. Stars lose some mass, but it's
not that fast. You appear to have invented an absurdly-large mass loss rate out of thin air. (Heck, dwarf stars lose mass
much much more slowly than giants.)
Nope. Thermal collisions at 20,000,000 kelvin produce energies of ~3Kev, you need velocities of many Mev to produce fusion reactions,
Nope, totally wrong. A collision energy of "many MeV" will produce a fusion reaction
in a very large fraction of collisions. Collision energies of a few keV (and thermal distributions around that) will produce
nontrivial but nonzero fusion reaction rates. This is a simple laboratory fact; I've done fusion reactions in my own lab in 10 keV beams.
The actual laboratory data,
including the actual numbers, says that the Sun's core temperature
does correctly predict the Sun's fusion reaction rates and energy output. (And its neutrino output. And its neutrino spectrum. And its density and sound speed.)
You
guessed that MeV energies were needed? Based on misreading something, I presume?
You made a mistake and reached a wrong conclusion. What are you going to do about it?
Phase transitions. As a plasmatic object loses enthalpy it transitions to lower energies, these energies are gaseous/liquid and solid material. The big bright, plasmatic objects as they lose enthalpy they become gaseous and less energetic, as well as lose their spectrums and begin radiating strongly in the infrared (brown dwarfs).
Nope. Again, numbers matter. Radiative energy loss is
slow (and we know how slow---do you?) A red dwarf star is expected (by the actual laws of physics) to maintain its core temperature, including a fully-ionized and convectively-mixed plasma with no core, for
trillions of years.
I understand that you have a
mental picture of a cold star with rocky material accumulating in the core, but
you just made it up. It is not something that is allowed to happen, according to the actual properties of gases, plasma, radiation, chemicals, and ions. Your mental guesswork picture is
inaccurate. What are you going to do about that?
I'm surprised how easy it is to understand. I'm shocked as to why this hasn't been considered by large science conferences, I guess group think and peer pressure are motivational factors to the detriment of scientific progress.
It's easy to
paint mental pictures. Since that is all you have ever done, of course you think it's easy. You skipped the hard part, i.e. using the laws of physics and chemistry accurately, and you got everything wrong. Real scientists, whose goal is to get things right, have to do the hard part.
It had to. To form many trillions of tons of chemical compounds present on the Earth and the sheer vast gravitational potential energy required to overcome the activation energy of all those molecules is mind-boggling. Only something as massive as a star could form something as massive as the Earth.
This is gibberish. Activation energies are not some sort of immutable barriers. Chemical reactions proceed
quickly in the presence of temperatures where kT exceeds the activation energy. You seem to think, erroneously, that they stop at lower temperatures? Or something? You think that there'd be no silicon dioxide on Earth if the parent silicon and oxygen atoms hadn't been baked together properly? Your idea does not correspond in any way I can identify with what I know about the chemical makeup of the Earth.