Is there a means to tell whether red shift is from motion or from other effects?
No, I don't see how there could be. The spectrum is either shifted or it isn't. As a result, there is no known way of knowing the size of the universe. In addition, intrinsic redshift undermines the sole foundation for the BBT (Big Bang Theory). Heresy in modern scientific circles. It will be ignored, made fun of, shunned and ostracized. Arp lost his telescope time (i.e. his career as an astronomer) over it.
I think gravity is the dominant force. But I also appreciate mockery of the "dark" talk from evolutionists.
Well, believing that gravity is the
dominant force and believing that space is electrically neutral and carrying no charge that would permit electromagnetism to play any significant role are not exactly the same thing. As I've said a few times already, I am not an EU proponent, at least not a full throated one anyway. There is a lot of what their proponents say that I reject entirely. Walt Thornhill says, for example, that the Earth is hollow as are the gas giants and that magnetism is a dipole force that propagates instantaneously. These things (well, some of them) can be easily tested. Even I, a total amateur can easily think of ways of proving that gravity acts instantaneously or it doesn't. That could be measured in a laboratory with equipment that was available decades ago and yet you never see a Thunderbolts Project video showing the experimental results showing the immeasurable speed of gravity. If I were running their show, I'd continue to try to get things published but would stop worrying about whether I was successful in the attempt. I'd just start publishing the work myself. The fact that they don't do so but are instead content to have a website and a YouTube channel and one or two published books that they don't mind selling you, is an obvious big red flag.
But just because they are clearly wrong on some things, doesn't mean that they are wrong on everything. Especially when they have observational evidence to support their ideas. Take video one for example, by what conceivable mechanism could gravity create magnetic fields that stretch across whole galaxies and even connect two (or more) separate galaxies? Gravity doesn't generate magnetic fields but electricity does. And if we know that electricity creates magnetic fields and we know that magnetic fields are capable of creating focused jets of charged particles and we have galaxies producing both, wouldn't Occam's razor require that we say that electricity is involved before conjuring up some new force of nature or before postulating that gravity is doing something we've never seen it do before?
I mean, I get the fact that someone at some point decided to accept the notion that space was electrically neutral. They probable had really good reasons to think that. What I don't get is the resistance to the idea that they were wrong in the face of contrary evidence? If scientists are so sure that electromagnetism, the by far strongest force known in nature that could potentially act on cosmological scales, can't possibly be playing a significant role in the formation and life cycles of galaxies and other cosmological processes, then, instead of blowing off the EU as crack pot nonsense and calling them all names and snickering, why not say, "Okay guys, A for effort but this is why you're wrong and why the universe is not and cannot be electric....".
Instead of anything like that, all I've ever seen is threats of boycotts and mass resignations whenever someone is successful in getting a paper on a related topic published. The pressure against the EU is not scientific, it's political. The Barbarian, here on this thread is the very first person I've ever seen who actually made real arguments and some pretty good ones too, I might add. They didn't address the topics of the videos but at least they weren't the ad hominem, "You're wrong because you're an idiot" sort of arguments that I see all over the place on other forums or in responses to videos and at websites supposedly dedicated to debunking the EU where you don't get two sentences into the site before reading, "However, the exact details and claims are ambiguous, lack mathematical formalism, and often vary from one delusional crank to the next." If the exact details and claims are ambiguous and lack mathematical formalism then just say so and let the truth of that work its ministry. Adding the "delusional crank" comment just makes me doubt both the veracity of the previous claim and the author's ability to present falsifying evidence.
Clete