This linked question What was Isaac Newton's view of the Trinity? was useful with the answer giving one quote from John Byl's article 'Newton and the Trinity' where Newton said that the great apostasy was not Romanism, but trinitarianism, "the false infernal religion".
However, the claim was made that "Newton's published works do not contain clear statements of this nature". Yet in this link, it appears that Newton did make some statements of this nature at the end of his Principia Mathematica: https://isaac-newton.org/articles/
Under the heading "Theology of General Scholium" it says,
"This essay, published in Osiris in 2001, reveals that the most famous book in the history of science (Newton’s Principia) concludes with an account of biblical monotheism and an attack on the doctrine of the Trinity."
However, I cannot get the link to open up the actual essay. This is why I am asking this question, to see if anyone can help establish that this published work shows disagreement with the Trinity doctrine, and - further - to see if his anti-trinitarianism shows any links to the Socinianism that predated his Principia Mathematica by at least 80 years.
I have this about Socinianism and The Polish Brethren, with which Stephen David Snobelen identifies Newton in the above link. The quote below is from E.H. Broadbent in The Pilgrim Church, pp224-5:
“One form of prevalent error which Calvin hoped to suppress by his strict rule [in Geneva] was Unitarian in character. It was of ancient origin, resembling Arianism in some respects, but at this time began to be described as Socinianism on account of the association with it of Lelio (1525-62) and Faustus (1539-1604) Sozini, uncle and nephew, natives of Siena in Italy. The latter lived much in Poland, since there as in Transylvania, Unitarian teaching was permitted and was wide-spread. He united the divided sections of Unitarians in Poland; they were called “Polish Brethren” and the “Racovian” Catechism expressed their views. Socinianism spread from them as a centre. It early affected some in the Protestant churches...”
So, my question is, Does Newton end his Principia Mathematica with anti-trinitarian claims as suggested in Snobelen's web-page, and is Newton's anti-trinitarianism a form of Socinianism?