Should Flat-Earthers be debated or ignored?

[Fake Messiah]

Yeah, the whole flat Earth "experiment" is botched. Mind you this is from a "prominent" flat Earth book and all he's using is a very bad screenshot from some YouTube video giving b&w blurry photo, wrong numbers, etcetera.
Here's a link of this video debunked

https://www.metabunk.org/using-mountain-...rth.t8800/

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Here's another claim from flat earthers. Flat earthers don't belive in the gravity ("It's only a theory")

gravity is like a heathen religious superstition. People believe it tobe true, simply because the modern day witch-doctors, whom we call “scientists,” say so.

According to the heliocentric model, the force of gravityat the equator is perfectly balanced against the centrifugal force ofthe spinning earth. All persons and objects are supposedly perfectly balanced through gravity by their mass against thecentrifugal force of the spinning earth to remain attached to the earth.

The problem with the gravitational theory is that according to that theory, the gravitational attraction to the earth by all persons and objects remains the same at all places on the earth. That means that the gravitational force at the North Pole is the same as the gravitational force at the equator. That poses a very real problem if the earth is spinning as alleged. That is because the centrifugal force decreases every mile toward the north pole, where the centrifugal force is ultimately reduced to zero, because the North Pole is the axis of the supposedly spinning earth. On a globe, as you travel north or south of the equator the circumference parallel to the equator becomes less. Consequently, the speed of the earth’s spin at those more northern and southern latitudes from the equator would be slower than its speed of spin at the equator. For example, at the 45 degree north latitude, the earth’s spin should be approximately 700 miles per hour. As thespeed of the spin is reduced, so also is the correlative centrifugalforce. The spinning earth and the mystical force of gravity are thus proven to be fictions.