Debunking 'Flat Earth Debunked' Videos

The following presentation is a response to "Professor" Dave's popular "10 Things All Flat Earthers Say" video that globe believers constantly share as if it's some home-run for heliocentrism. If you see anyone posting his video, please be sure to share this debunking with them for me.

If you're a flat-Earther or have searched the topic using YouTube's ridiculously biased algorithm, or allowed YouTube's auto-play feature to recommend your next video, or tried to send an Eric Dubay video to one of your globe-indoctrinated friends, you and they will likely have come across a "debunking" video by one of YouTube's most pushed globe propagandists, SciManDan.

In the following presentation the President of the International Flat Earth Research Society Eric Dubay debunks NASA's Assistant Director for Science Communication Michelle Thaller's top "proofs" that Earth is a spinning ball.

-Think that the Earth is flat its not okay!
-Ok...sorry...than i think its a sphere...
-Good boy!
I dont know who was the target group of this video, but i have a feeling that it was pretty contraproductive.

In the following presentation the President of the International Flat Earth Research Society Eric Dubay debunks astrophysicist Neil DeGrasse Tyson's top "proofs" that Earth is a spinning ball.

I have a genuine question, I started posting flay earth material on twitter and got attacked by loads of trolls and some of the stuff I don't know how to answer, on the point of gravity not existing and everything falling or rising depending on their relevant density how would you answer this?

I'm rubbish at mathematics myself, but had I any questions I'd not ask the general public as they are still in the matrix and would default to solving the problem by mainstream maths and science. For your problem, I'd say learn density and boyancy from the books and leave it at that. Basically trust your own eyes and gut and see how different objects fall in your kitchen. You've prooved it yourself.