I havn't been following this discussion - but would like to comment that in all the writings that form part of what now forms the intellectual foundation of christian thought - nothing may be as it seems.
And that may well be the case for this sample of Apologetics (from Gk ἀπολογία, "speaking in defense") which is the religious discipline of defending religious concepts through systematic analysis and argumentation and discourse, (this one known generally as The Apology of Aristides) as posted in full by Terry, to the approval of Sea Breeze
In 1958 an interesting analysis of this sample of apologetics was published in the Harvard Theological Review (Vol. 51, Issue 4, October 1958, pp, 227-254). The author, G. C. O'Ceallaigh called his review,""Marcianus" Aristides, On the Worship of God."
An extract (as published by Cambridge Core) says:
Careful inspection of all external and internal evidence reveals that the Apology of Aristides, known since 1889 as the long-lost “earliest extant apology for the Christian Faith,” mentioned by Eusebius and Jerome, was written by a proselyte to Hellenist Judaism, probably in the time of Hadrian, not as an apology for Christians at all, but primarily as a counterattack upon polytheists and their religious notions and secondarily, as a defense of the monotheistic worship and the morals of the Jews.
This definitely Jewish work of the second century was interpolated and “edited” by a Christian writer, probably of the late fourth century, and was thus converted into what passed as an apology for Christianity.
So what seemed to be the earliest defense of christian beliefs is actually a re-write of an earlier document, edited to reflect the post Constantine doctrines of the early church.
To read the full article ( and all the author's reasons for his conclusions), you will likely need access to a good library
The link to the Cambridge Core copy is at https://www.cambridge.org/core/journals/harvard-theological-review/article/abs/marcianus-aristides-on-the-worship-of-god/E82BA3C0F42673A88421E2B27B8575E4