the moon - Is it possible the Nebular Hypothesis and Planetesimal Theory are not correct?

TidalWave says it perfectly:

"What is the question? So far, all I can think of as an answer is explaining the meaning of scientific theory as an integral part of the scientific method. Of course it is possible it is not correct, science doesn't function on dogmatism. Theories are frequently corrected, expanded, or even completely dismissed. Having a status of the most accepted theory often means it's just the second best thing to the one that'll withstand the trial of reality better. Theory != Axiom."

The nebular hypothesis is simply the best model that fits our observations - that's how the scientific method works. In the last decade, we have been discovering and analysing increasing numbers of planetary and protoplanetary systems. Our models of the formation of these systems are continually refined as both our observations improve and our computing power increases.

"When I ask Senior Astronomers in the U.S. who specialize in Planetary Evolution to review the concept, they personally insult me for even asking rather than employ any scientific theory or scientific methods to evaluate it."

You're insulting them, by asking them to justify why the work they base their livelihood upon isn't a load of rubbish.

You cannot justifiably criticize an accepted scientific theory without coming up with an equally plausible idea (unless you manage to prove that something is wrong). And unless someone does come up with a better idea, the nebular theory will continue to expand and evolve to better match our observations. That is the scientific process.