RET scientists with their endless resources can not even tell you how anything began. They can only give you their best guess. Yet, we are expected to know all of the answers.
Firstly, there are no such people as "round-earth scientists". There are only scientists. And no accredited scientist accepts the flat earth model, and there are currently in excess of 6 million scientist in the world.
I agree with you however that scientists can only make their best "guess" as to how the planet was formed. Although I'd prefer to use the word hypothesize, as it's a bit more accurate than just a guess. The FEs guess that the earth was created flat, and the REs guess that it was created round.
The difference is, as I see it, is that
the FEs have not one piece of credible evidence to support their guess, whilst the REs have numerous bits of evidence to support their guess. The most obvious is of course high-altitude photos, which scientists regard as totally legitimate, despite the FEs claiming they're bogus. The other obvious proof is the "arrangement" of the rest of our visible solar system, by which I mean planetary bodies visible through optical telescopes. Nobody—including FEs—can deny what their own eyes are telling them.
So...
all the other planets are spherical. So are
all their moons (roughly).
Mars: Deimos and Phobos.
Jupiter: Ganymede, Callisto, Io, Europa.
Saturn: Titan, Rhea, Iapetus, Dione, Tethys, Enceladus.
Uranus: Titania.
Neptune: Triton.
And we can see those 14 moons orbiting their planets in a circular path, using an ordinary telescope, or even binoculars for Mars and Jupiter.
The obvious question for the FEs to address is why are there no other flat planets and/or moons in the solar system? And why is our own moon spherical? Is it logical that out of the hundreds of visible, spherical planetary bodies in our solar system that the only flat one is earth?
I'd regard it as virtually and totally improbable, given the evidence above.