This – that the observed redshifts conforming to
Hubble’s law are due entirely to the relativistic Doppler effect and gravitational redshift – is no longer the most accepted theory explaining Hubble’s law.
Rather, the “cosmological redshift” due to the metric expansion of face is theorized to be the dominant contributor to the large redshifts of the most distant objects. Many good summaries of this present-day state of cosmological theory are available in the popular science press and online, including
this wikipedia article.
The situation is actually worse than this. Not accounting with the cosmological redshift, various observations of very distant objects indicate that these objects are receding at greater than the speed of light, and therefore have greater than infinite kinetic energies. This impossible application of the
theory of special relativity was a major influence on the development of the theory of the metric expansion of space and the cosmological redshift.
Theories containing this mechanism, conventionally termed “
tired light”, have been well-known for a long time (Zwickey proposed one of the first in 1929). However, for many reasons (summarized in the precedingly linked wikipedia article and its linked references), this mechanism was largely rejected by most cosmologists by the late 1950s.
Jerry, what do you mean by multi-lightspeed universe and multi-lightspeed energies? The only references I’m able to find to this term appear in your posts at this and other forums.

As you should know, Jerry, hypography’s rules require that claims such as the several in your preceding post must be backed up with links and references.
Your previous post makes may very unusual claim, but gives no links or references. In addition to being against our site rules, this is bad form for scientific writing in general. I strongly encourage you to seek out good sources of experimental data supporting your claims (I don’t think you’ll be able to find good scientific papers or popular articles supporting them), or if unable to find such data, reconsider them.