You are getting closer to the problem with your comment on Ibn Sina's concern for his fate. Plato had the same personal concern and for the same reason as Ibn Sina. — Fooloso4
The "problem" is not the problem of the Platonists. It is your problem and the problem of other atheists that insist that Plato was an atheist without presenting even a shred of evidence .
Your problem is you are claiming that "secrets = atheism". So, would you mind explaining to us by what logical mechanism you arrive at that conclusion? I am curious to now.
In the meantime, you are saying that Ibn Sina, like Plato, was preaching atheism secretly for fear of being executed like al-Hallaj, just as Plato was afraid of being sentenced to death like Socrates.
The obvious problem with that claim is you have failed to show that Socrates was an atheist. Indeed, it would be hard to believe that he was, given that he was constantly talking about God and Gods.
IMHO, the objective examination of the Platonic texts allows no other conclusion than that Socrates and Plato were not atheists, but religious reformers. All they did was to introduce a new category of metaphysical or divine realities or beings that would be more suitable for philosophical minds than traditional deities.
“So once more, as if these were another set of accusers, let us take up in turn their sworn statement. It is about as follows: it states that Socrates is a wrongdoer because he corrupts the youth and does not believe in the gods the state believes in, but in other new spiritual beings. Such is the accusation" (Apology 24b – c).
The exact phrase is ἕτερα δαιμόνια καινά hetera daimonia kaina, “other new daimons (spiritual beings)”. The charge was ἀσέβεια asebia, “impiety or irreverence”, not atheism.
http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0170%3Atext%3DApol.%3Asection%3D24b
“For he says I am a maker of gods; and because I make
new gods (καινοί θεοί kainoi theoi) and do not believe in the old ones, he indicted me for the sake of these old ones, as he says” (Euthyphro 3b).
We find the same in Xenophon:
“Socrates came before the jury after his adversaries had charged him with not believing in the gods worshipped by the state and with the introduction of new deities in their stead and with corruption of the young” (Xenophon, Apology 10).
The exact phrase is ἕτερα καινὰ δαιμόνια
hetera kaina daimonia, “other new spiritual beings/deities”
http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0211%3Atext%3DApol.%3Asection%3D10
Plato's metaphysics is a multi-layered system starting from traditional religion and gradually ascending to higher forms of thought and experience.
Another important thing to remember is that Socrates was going to be acquitted on condition that he refrain from preaching his new religion, which he declined. All he needed to do was to moderate his language and not promote it in public. It follows that Plato had nothing to fear.
Let's now take your other famous quote:
All ...who have spoken of divine things, both barbarians and Greeks, have veiled the first principles of things, and delivered the truth in enigmas, and symbols, and allegories, and 4 metaphors, and such like tropes.” And why should I linger over the barbarians, when I can adduce the Greeks as exceedingly addicted to the use of the method of concealment. – Clement of Alexandria, Stromata, 233-34 (5.4), 247 (5.8) — Fooloso4
Again, by what logical argumentation do you arrive at the conclusion that "enigmas and concealment = atheism"?
Suppose, for the sake of argument, that Ibn Sina was afraid of openly preaching atheism and did so covertly.
But how does this apply to Clement of Alexandria? He had been a Pagan and converted to Christianity in around 170 CE. Why would he convert to Christianity to teach atheism? He could have done that as a Pagan. According to you, he already had Platonism for that purpose.
For your theory to work, you would have to show that all the Church Fathers, philosophers and mystics were "atheists". Did the Desert Fathers withdraw from society to meditate on the non-existence of God, whilst praying seven times a day and using passages from the Bible for daily contemplation?
Aside from the total lack of evidence, and the absurdity of it, it sounds very much like conspiracy theory to me. What you are literally claiming is that, for two millennia, Christians have been secretly believing in atheism and covertly preaching it, because Socrates chose to allow himself to be sentenced to death for being disrespectful to traditional religion.
Also, please note that you are citing Leibniz and Warburton to justify your mistaken interpretation of Platonic dialogues, but you attack me for citing Platonists, which seems rather strange. Why would Leibniz and Warburton understand Plato any better than Platonists like Plotinus and Proclus?