well I don't know about Calvinistic views, but I do know about people calling people Calvinistic when they don't like the answers given,Love thy neighbor as thyself.
A "neighbor" is someone in your insulah. A collection of houses built onto a central patriarch's house with a courtyard. But also includes the outcast "Samaritan" according to Jesus. So....YES! But not necessarily if they are a proclaimed atheist.
THIS:
All physical infirmities/deformities were caused ultimately by sin.
Being born into a Christian family or community gives people a better chance at being Christian.
So....sin must determine all faults of unbelief or illness in a person.
Then....is it individual sin or corporate sin that causes these life altering problems?
And we see this story in John when the Apostles asked Jesus, "Who sinned to cause this man to be born blind?".
And it's the same as the more modern Calvinistic question that's been asked for centuries before the internet was invented.
And as far as the Nature of God....
A.W. Tozer's "Knowledge of the Holy" has been the standard of Attributes of God as well as all the "omni-" terms used by people to describe God's nature and character. It's not an easy read by a long shot. But it's accuracy hasn't been challenged successfully. His style of writing has. (hard read and difficult to understand but otherwise the substance of his writing remains unchallenged.
But you touch on a good question about sin causing a man to be blind.
I believe that scripture touches more on spiritual blindness not physical blindness, where sin is preventing people seeing the spiritual ways of God and not believing a person can be healed
I believe that people who miss represent that, should be seen as blind to, and not calvinistic, because true Christians associated with Calvin's teachings are not spiritually blind.
But those painting the picture they are, are either miss informed or in my opinion forcing there will upon you, whilst painting the picture somebody else is forcing there will,
That's a never ending cycle sadly.