Actually they are on topic. Consider this one:
"If the doors of perception were cleansed, all would appear as it is, infinite."
Now let us do some logic with this - just to construct a little bit of philosophy.
If we take this as a beginning, then we can say that all exists within the infinite.
What does this mean?
Consdier this statement. I came to this while I am going to sleep, and I wanted to share with you.
A drop of water in an ocean is of the same constitutional properties as the entire ocean. It is qualitatively the same, though the quantity is different.
The same is true of gold. A particle or molecule of gold is chemically the same as the whole bar of gold.
We are the same as this. We are qualitatively the same as God - whether this God is the universe, the source of everything, the infinite, or something else.
Let us take the example of the universe - we are qualitatively the same. How can it be, or what does it mean?
I am saying this because the analogy from gold and water, it is the case in those instances.
And also, don't forget, we are going from Blake saying that if the doors of perception were cleansed, all would appear as it is, infinite.
So all is infinite, or all is divine. But it is not actually simply divine in and of itself. Vegetable matter is not divine, if there is nothing except for vegetable matter. But rather, all is divine because it is part, or rather belongs, to the divine.
All is divine because it is part of the infinite. Vegetable matter, rocks, trees, air, light,
us, - all of this is divine because it belongs to God.
Now - whoops - I said that word which wars have been started over and which you do not adhere to.
What is Godhead? Godhead is the supreme. It's the root of existence. It's the Divine Grace. The Divine Mother and the Divine Father. There is no reason to start wars over it, and anything done so is actually only done in trying to become God, instead of trying to serve God. Just look at all the "divine right" rulers.
But just because of human affairs, actualities do not change. The universe is not affected by our actions. Enlightenment does not cease to exist simply because someone who said they were a Buddhist, Hindu, Christian (insert any label) actually committed atrocious acts.
So if what Blake said was true; that all is infinite (or as I would say, all is in some part, part of the infinite, since the infinite is the source of all) - this remains true regardless of human affairs.
As for the Christian Hell - I would say that I read your post and I understand your feelings. I feel this way - or I would if I let my feelings go completely unchecked - when someone ascribes the adjective "delusional" to one of the members of Lit-net. Get this? I get you. I feel the same way about what I just said. But I am encouraging you to consider one point. We are all human!
And one other point, and this will be my last (I realize this post must when it's posted be VERY long because of one-sentence paragraphs...) - Christianity is not based on Hell. Christianity is based on Christ.
Christ taught love of God - God consciousness. This message may not have been new, but it is what he taught. Christ taught that "the Kingdom of God is within you" and this is the message that if someone is not preaching, they are not Christian. It is good news. But it is not incompatible with other religions. If you look at Buddhist scriptures, you will find in the Great Flower Ornament Sutra it says "in every atom of the universe, there exist oceans of world systems." Similarity?
Buddha-nature.
Hinduism also teaches that God is within. The drop of water and particle of gold comes from Hinduism.
But if you look, then you see that Buddha-nature, and divine nature, they are the same. Only Buddhists sometimes are impersonalists. They don't believe in the soul, while Hindus believe in the divine soul. It's the only difference. Both are vegetarian, and both don't eat garlic either.

Messes with your subtle energies.
No one has all the answers. But every one of us has the greatest potential. To quote Harrison - each soul is potentially divine.