There’s an incredibly bizarre and tedious method of becoming a god by effectively tricking reality into thinking that you and the god are the same entity. This works best on gods who are already dead, as doing it on a living one causes you to be subsumed into the god rather than the other way around.
This is, in fact, the easiest of six ways of achieving divinity (or beyond), one of which being the mecha mentioned earlier, one of which being gaining an understanding of the anti-laws of reality, and one being gaining an understanding of how to combine two opposing concepts into a singular truth.
Talos the god is in fact four former humans fused into one, all Mantling the dead god Lorkhan: Wulfharth, Hjalti Early-Beard, Tiber Septim, and Zurin Arctus. They each contributed a role in mimicking the life and fall of the dead god Lorkhan, and in turn began to Mantle him, eventually merging together into Talos Stormcrown, who was so powerful that he rewrote history to make himself more impressive, and also the first Emperor of the Third Empire. It is also said that Talos altered Cyrodil, retroactively changing it from a tropical jungle to a very temperate region ideal for farming and livestock.
The reason that the Thalmor hate Talos worship so much is because they’re fully aware that Talos has a great deal of power, but the power of a god is derived from their worship; as a result, by outlawing Talos worship, he is greatly weakened and unable to take action. Furthermore, the Thalmor believe that Elves are in fact gods cursed to mortal form, with High Elves being the closest to their divine ancestors; in their eyes, a human ascending to divinity is blasphemy, and thus they seek to kill Talos both metaphorically and literally.
Furthermore, the Thalmor have, for the past few centuries, been systematically destroying a series of eight ‘towers’ that are responsible for upholding reality from nonexistence; the Thalmor believe that destroying these towers will cause the Elves to once again regain their divinity, and everyone else to die. Out of the eight towers, only one remains, the Adamantine Tower, sitting in the Iliac Bay and serving as the home of a High Elven family responsible for shaping High Rock politically and ethnically, and who are to this day expert merchants.
The other towers are the Red Mountain (destroyed after the events of TES III: Morrowind), The Crystal-Like-La and the White Gold towers (both destroyed during the Oblivion Crisis), the Orichalc Tower (destroyed when Yokuda sank before the games even start), the Walk-Brass (aka the mecha mentioned earlier, which was destroyed and rebuilt, then disappeared from existence), Green-Sap (a large network of mobile trees which once wandered Valenwood, but which have since rooted themselves), Snow-Throat (which isn’t a fully literal structure, but rather Skyrim’s political stability, often interpreted as the Throat of the World), and Doomcrag (whose core was stolen by Molag Bal and brought to Coldharbor).
And finally, all races of Human and Elf (including Orcs; Orcs are, indeed, a type of Elf, regardless of what bigots may claim) can have healthy children together, and the resulting child will take after its mother in terms of racial traits, with paternal traits still being possible but less present. The ability for Argonians, Khajiit, and Daedra to have mixed-race children is unknown, though there have been unverified reports throughout history. There are also various other races who are so isolationist, hostile, or otherwise considered to be monsters that anyone who is impregnated by or impregnates one would be too ashamed to come forth with the truth of the matter; for a long time, Orcs were considered monsters as well, and the book Notes on Racial Phylogeny claims that Orcs aren’t well understood biologically in the same manner as Goblins, Trolls, Harpies, Dreugh, Tsaesci, Igma, Daedra, and more, and that book is still distributed today in the Fourth Era in spite of the fact that at least one Half-Orc has been confirmed to exist in recent history- former Imperial City Arena Champion Agronak gro-Malog, aka the Gray Prince, had an Orcish mother and an Imperial father.