cooties

deifies the great heroes/kings (alex the pretty good)
claims old greek gods are just kings
influences of pharaoh attaching themselves to gods
Euhemerus apparently systematized a method of interpreting the popular myths, which was consistent with the attempts of Hellenistic culture to explain traditional religious beliefs in terms of a naturalism. Euhemerus asserted that the Greek gods originally had been kings, heroes, and conquerors, or benefactors to the people, who had thus earned a claim to the veneration of their subjects. According to him, for example, Zeus was a king of Crete, who had been a great conqueror

https://en.wikipedia.org/wiki/Alexander_the_Great
wanted nothing more than to be revered as a god (Achilles)
he also had a lover Alexander’s relationship with Hephaestion as sexual, though the pair was often compared to Achilles and Patroclus, who are often interpreted as a couple. Aelian writes of Alexander’s visit to Troy where “Alexander garlanded the tomb of Achilles, and Hephaestion that of Patroclus, the latter hinting that he was a beloved of Alexander, in just the same way as Patroclus was of Achilles.”
The Greek biographer Plutarch (c. 45 – c. 120 AD) discusses the accuracy of his depictions:

The outward appearance of Alexander is best represented by the statues of him which Lysippus made, and it was by this artist alone that Alexander himself thought it fit that he should be modelled. For those peculiarities which many of his successors and friends afterwards tried to imitate, namely, the poise of the neck, which was bent slightly to the left, and the melting glance of his eyes, this artist has accurately observed. Apelles, however, in painting him as wielder of the thunder-bolt, did not reproduce his complexion, but made it too dark and swarthy. Whereas he was of a fair colour, as they say, and his fairness passed into ruddiness on his breast particularly, and in his face. Moreover, that a very pleasant odour exhaled from his skin and that there was a fragrance about his mouth and all his flesh, so that his garments were filled with it, this we have read in the Memoirs of Aristoxenus.[218]
Historians have understood the detail of the pleasant fragrance attributed to Alexander as stemming from a belief in ancient Greece that pleasant scents are characteristic of gods and heroes
Nawotka, Krzysztof (2010). Alexander the Great. Cambridge Scholars Publishing. p. 43.

https://en.wikipedia.org/wiki/Demetrius_I_Poliorcetes
thought he was dionysus
Hegel, in the Lectures on the History of Philosophy, says of another Demetrius, Demetrius Phalereus, that “Demetrius Phalereus and others were thus soon after [Alexander] honoured and worshipped in Athens as God.”[14] What the exact source was for Hegel’s claim is unclear. Diogenes Laërtius in his short biography of Demetrius Phalereus does not mention this.[15] Apparently Hegel’s error comes from a misreading of Plutarch’s Life of Demetrius which is about Demetrius Poliorcetes and not Demetrius of Phalereus. Plutarch describes in the work how Demetrius Poliorcetes conquered Demetrius Phalereus at Athens. Then, in chapter 12 of the work, Plutarch describes how Demetrius Poliorcetes was given honors due to the god Dionysus. This account by Plutarch was confusing not only for Hegel, but for others as well.[16]

Georg Wilhelm Friedrich Hegel, Lectures on the History of Philosophy, volume 2, Plato and the Platonists, p. 125, translated by E. S. Haldane and Frances H. Simson, Lincoln, Nebraska: University of Nebraska Press, 1995.
Kenneth Scott, “The Deification of Demetrius Poliorcetes: Part I”, The American Journal of Philology, 49:2 (1928), pp. 137–166. See, in particular, p. 148.

“When men choose not to believe in God, they do not thereafter believe in nothing, they then become capable of believing in anything.”
― G.K. Chesterton