[ring species] supports my theory of sudden change and the necessity of a niche before such change can occur.
Except it doesn't. It's an illustration of gradual change leading to speciation.
What's the interest in calling observed changes in populations over generations "sudden"? I suspect it relates to the creationist belief that new life forms only occur by divine creation, which is considered instantaneous.
Nature selects for behavior, not fitness to cause speciation.
And what behavior does it select for? The behavior that makes that individual more fecund than its competitors for scarce resources, which is what determines which is fittest.
Nature selects for more than behavior, which is why effective camouflage confers a selective advantage, as do thorns on plants. But behavior is most of it. If you are stronger or smarter than others competing with you for the same scarce resources or trying to elude predators, you will have a competitive advantage in the race to reproduce and get your genes out there in the gene pool in greater number.
All observed change in all life at all levels is sudden.
This is an odd comment. How fast is your hair growing?
Of course, sudden is an imprecise word. It's the one used to describe the Cambrian explosion. If you could provide a simple, precise, intensional definition of
sudden such that it could be agreed upon which things are sudden by thast definition and which are not, then there would be a basis for agreement or rebuttal.
Anyone who doesn't agree is ignorant.
Anyone not participating in dialectic will be disregarded.
Dialectic is the cooperative effort between two or more critical thinkers who are trying to decide what is true when they disagree. They do this by making what they consider sound arguments for their positions. If there is an error of fact or a logical fallacy, the other notes that, which is rebuttal. This rebuttal might be flawed, and the flaw pointed out. Eventually, they come to agreement over matters of fact if they use the same method for deciding what is true about the world, which critical thinkers do.
So, if somebody says that the theory of evolution is correct and makes a sound argument in support of that, and it is not rebutted (disagreement alone is not rebuttal), whatever else is offered is dismissed as irrelevant. And if it's clear that they don't possess the skills and knowledge to do that, then yes, they are ignorant of what others have learned and consider important.
When I present evidence it is dismissed.
I don't recall you presenting evidence, just unevidenced claims such as all change is sudden. Even if you did, if the evidence doesn't adequately support the conclusion following it, the unsound conclusion is what is dismissed, not the evidence.
Expertise is irrelevant. The opinion of Peers is still only opinion
There is a condition called the Dunning-Kruger syndrome characterized by a group of people who are unaware of what others know and the power of that knowledge. If one is unaware of critical thinking and what it can do to empower the critical thinker, then that person has no way to know that not all opinions are equal or arrived at the way the unknowing one arrives at his. We see this continually on RF, and it usually manifests as a comment like yours, some form of "you can't know" what is already known. Maybe this person thinks that one has to go back in time and witness the past to know what happened then: "You weren't there to see it, so you're just guessing."
We see ideas like yours in the debate over vaccination. "Fauci's opinion is irrelevant." And in the climate science controversy. In both cases, you have people that think their uninformed opinions are as useful and valid as any other, because being unaware of how one can know things they don't know, they assume that their ideas are equally valid when they demonstrably are not, as when the unvaccinated die at a higher rate than the vaccinated, or when extreme weather becomes more extreme as the earth warms.