If you can observe (let's say within Arctic circle during one Polar Night) how circumpolar stars make PERFECT circles in the sky (daily parallax), then during one Polar Day you should also be able to observe how the Sun makes PERFECT circle in the sky (it's daily parallax).
That's not parallax, that's rotation. They're different.
How in the world you can justify Parallax of the Stars which happens during the Polar Night, if in the same time you are not willing to admit that the same phenomena should be observable (on the same geometrical basis) while watching the Sun during one Polar Day?
Since what you're describing is not parallax, the question is moot.
This thing is perfectly clear and beyond any dispute,
Yes.
only totally insane people can keep going with questioning such a simple and obvious concept!
Yes, but you're the one that appears not to grasp the obvious and keeps arguing from a position not supported by any evidence. Recognizing that you have a problem is the first step to recovery.
We have put this ZIGZAG (parallax) concept through paces,
And it utterly failed. It's time to move on.
and we proved beyond any reasonable doubt that this concept is 100 % proof against the rotation of the Earth.
Where? The claims presented as "proof" are simply misconceptions.
As soon as there is no rotation of the Earth, everything falls to pieces!
As soon as there is no rotation of the Earth, we'd notice immediately. And, yes, everything would fall to pieces because a change like that would make any climate change we're experiencing now completely insignificant in comparison. But why would this happen?
P.S. Have you ever asked yourself this question:
How come that you can see daily parallax of the stars in the sky, but you are not able to see annual stellar parallax in the sky???
No. It never occurred to me to ask that question, because there's no reason to. You cannot see daily parallax of the stars. With good instruments and careful measurement, you can see annual parallax in nearby stars. You are confusing rotation with parallax. They're not the same.
On top of that:
One daily parallax (which we CAN observe) allegedly happens within few thousands miles wide circle.
Nope. See above. Parallax ≠ Rotation. [Please comment if the "not equal to" symbol between 'Parallax' and 'Rotation' doesn't show up correctly. This is an experiment]
One annual parallax (which we CAN'T observe) allegedly happens within 188 000 000 miles wide circle.
The annual parallax of the Sun is easily observed. That's what makes the sun appear to change positions against the distant stars as the year progresses. Because we're orbiting the Sun, it makes a full circle around the ecliptic in a year. As already noted, nearby stars show small but measurable parallax vs. more distant ones.
This is my video animation of my ZIGZAG argument : <link to amateurish error-filled video>
This is Rory's video animation of my ZIGZAG argument : <link to another error-filled video with better production quality>
Both chock full'o'errors.