Tekhelet
Adam, you have an opinion about tekhelet and that's fine. You might even be able to find support for your contention that "there is no unanimous decision by all of the current leading Jewish sages that the claims of the Ptil Tekhelet organisation are true" if you were to go about adding this to the article in an encyclopedic way, that is, adding the statement in a neutral tone of voice, and citing reliable sources,  (not yourself) or your original research.

However, what is not fine is the following:

Disruptive editing
Deleting sourced statements such as ,  and adding material sourced to or referring to yourself, such as here: ,  ; see WP:COS is disruptive editing and unacceptable.