NCV (Natural Climate Variance) explains all 3 Milankovitch cycles. With eccentricity, the land mass of the northern hemisphere and the Pacific plate having been pushed into the Earth causes an imbalance. This causes the Earth’s orbit to become more elliptical due to conserved momentum.
With Obliquity, glaciation changes the Earth’s moment of inertia causing to spin faster on its axis. This gets into the Earth moving through a field of Dark Matter https://www.nasa.gov/universe/dark-matter/how-dark-matter-could-be-measured-in-the-solar-system/ Dark matter acts on matter at the gravitational level. This is why the Earth moves closer to the Sun during a full on ice age. The likely cause is a decrease in the realization of the Sun’s orbital velocity sqrt(GM/r). The faster the Earth spins, the less the Sun’s orbital velocity acts on the Earth’s linear velocity because the Sun’s orbital velocity is being converted into angular momentum.
With Precession, the imbalance that causes the Earth’s axis to tilt is also responsible for precession because it’s imbalance is in one hemisphere. Praiws34e Jesus on High and all glory to Jesuysw christ my savio5r