A couple more problems I've found with atheism. Strange connections.
One is with Karl Marx of which I have said atheism leads to communism many times. One of the differences between atheists and the religious is that the atheists, physicalists, naturalism advocates believe that the mind and the brain are the same. Thus, all that exists are material. Dualism or the separation of mind and body into spirit and matter is not the norm, but that the mind is the output of the brain. This disagreement is called the mind-body problem.
Here is how Karl Marx addressed it in his dialectical materialsim problem.
"Like every philosophy, dialectical materialism must address the mind-body problem. Marxists rely on the key word
reflect when addressing this issue. They contend that our mind reflects matter in a way that makes our perception accurate. For Marx, “the ideal is nothing else than the material world reflected by the human mind, and translated into forms of thought.”1 However, Marx does not address the origin of this
ideal. Lenin echoes Marx: “The existence of the mind is shown to be dependent upon that of the body, in that the mind is declared to be secondary, a function of the brain, or a reflection of the outer world.”2 To avoid calling consciousness supernatural, Marxists rely on the notion that consciousness is just a subjective reflection of objective reality.
Marxist Philosophy – Everything is Matter
For the dialectical materialist, everything must have proceeded from matter, even societal interrelationships and the mind. Maurice Cornforth writes, “Mental functions are functions of highly developed matter, namely, of the brain. Mental processes are brain processes, processes of a material, bodily organ.”3 Although Marxists may refer to thought as a
reflection of objective reality, they must admit that in their view the mind is simply a function of matter."
Marxist Philosophy and The Mind/Body Problem
Another person of infamy to the religious is Baruch Spinoza. He had a strange philosophy of religion in that he advocated God, but not in the traditional God as transcendent way. He became well versed in the Bible, but taught God as a necessity because he is the cause of natural things. In other words, God was made equal with nature and wasn't the transcendent figure that is taught in the Abrahamic religions and the Bible. He was excommunicated from the Jewish community and was stabbed as a heretic. His fourteen propositions is strange to read.
Fifteen Propositions
"Proposition 1: A substance is prior in nature to its affections.
Proposition 2: Two substances having different attributes have nothing in common with one another. (In other words, if two substances differ in nature, then they have nothing in common).
Proposition 3: If things have nothing in common with one another, one of them cannot be the cause of the other.
Proposition 4: Two or more distinct things are distinguished from one another, either by a difference in the attributes [i.e., the natures or essences] of the substances or by a difference in their affections [i.e., their accidental properties].
Proposition 5: In nature, there cannot be two or more substances of the same nature or attribute.
Proposition 6: One substance cannot be produced by another substance.
Proposition 7: It pertains to the nature of a substance to exist.
Proposition 8: Every substance is necessarily infinite.
Proposition 9: The more reality or being each thing has, the more attributes belong to it.
Proposition 10: Each attribute of a substance must be conceived through itself.
Proposition 11: God, or a substance consisting of infinite attributes, each of which expresses eternal and infinite essence, necessarily exists. (The proof of this proposition consists simply in the classic “ontological proof for God’s existence”. Spinoza writes that “if you deny this, conceive, if you can, that God does not exist. Therefore, by axiom 7 [‘If a thing can be conceived as not existing, its essence does not involve existence’], his essence does not involve existence. But this, by proposition 7, is absurd. Therefore, God necessarily exists, q.e.d.”)
Proposition 12: No attribute of a substance can be truly conceived from which it follows that the substance can be divided.
Proposition 13: A substance which is absolutely infinite is indivisible.
Proposition 14: Except God, no substance can be or be conceived."
Baruch Spinoza (Stanford Encyclopedia of Philosophy)
"Nevertheless, once branded as a heretic, Spinoza's clashes with authorities became more pronounced. For example, questioned by two members of his synagogue, Spinoza apparently responded that God has a body and nothing in scripture says otherwise.
[35] He was later attacked on the steps of the synagogue by a knife-wielding assailant shouting "Heretic!" He was apparently quite shaken by this attack and for years kept (and wore) his torn cloak, unmended, as a souvenir.
[41]"
https://en.wikipedia.org/wiki/Baruch_Spinoza
More about his life here
Benedict de Spinoza | Dutch-Jewish philosopher
EDIT: What does this mean? Well, if you follow the Marxist Communist line, it says that that which the brain perceives is correct of the outer world and that the mind is secondary or that of not in outer world or reality. Thus, these atheists are easily swayed to think that what they have been told is correct and will fight to their deaths over it. This isn't a discussion so much of the mind vs brain, but which cognition one should subscribe to. OTOH Spinoza is a clever fellow in that he relates formal methods of proof to his arguments. Some think he was a pantheist, but he doesn't have the religious feelings that of the pantheist or spiritual appreciation of the pantheist. I can see why someone tried to kill him. He knows how to press religious people's buttons.