When is a Religious Belief Delusional?

[Whateverist]

Mathematical objects exist *as language constructs*. If you are claiming that deities only exist in the same way, you might be able to avoid the delusion label...Platonism was the first major philosophical mistake.

Is there anyone who will fucking answer the question clearly and without caveat!!! Is it or is it not delusional to be a Platonist and/or believe in intellectual objects such as 'The Good'? YES or NO?

The world is not always black or white. It depends on how you apply the word delusional. Many have already indicated they don't think it works here but there is ample room for disagreement. While I would answer "not necessarily", I do worry that your concept of what a concept is is deficient.