Hi Dave,
The position of the Earth’s point of perihelion is fairly random.
Over astronomical timescales, the point of perihelion undergoes considerable precession over hundreds of millions of years, and so there’s not much significance to where it happens to be right now. Further evidence that perihelion points are random comes from the fact that the perihelion points of the other planets are all in different positions around their orbits (see the attached screenshot, taken from https://in-the-sky.org/solarsystem.php , showing the terrestrial planets, with perihelions marked ‘P’).
The fact that the sun’s tilt is always reasonably close to zero is not such a coincidence – the Sun and planets formed out of a common protostellar nebula, and both the Sun and the planetary orbits take their plane of rotation from the rotation of the gas cloud from which they formed.
Cheers,
Dominic
