- Jesus was not born on December 25th. It was apparently a traditional date for many sun festivals, and at some point, someone decided to Christianize the festival, and the Weird Al effect kicked in. Maybe. There's actually not a whole lot of evidence that the sun festivals even predate Christmas.
The actual date of his birth, as best as we can tell, was most likely some time in the spring or early summer.
(From what I read, there's no solid evidence that Mithra was believed to have been born on December 25th either. It's just assumed that he was because he was a sun god.)
- The Star of Bethlehem was not in the east. The magi who saw it were
from the east, meaning the star was in the west. In ten minutes of casual Googling, I didn't notice any references for Krishna and Horus having stars (I did find a guy saying that he couldn't find any evidence for Horus having a star either, though), so I don't know if the direction actually matters (doubtful, considering how big of a stretch some of the other stuff in that list is), but it shows how much effort the creator of that list put into his or her research.
- "Performed miracles"? Really? Supernaturality itself is evidence of plagiarism?
- Mithra's "virgin birth" was that he came out of a rock.
- Krishna's "crucifixion" was being shot in the foot with an arrow, and dying underneath a tree.
- Horus's "virgin birth" was that his mother, a goddess, put together the cut-up pieces of her dead god husband and magically brought him back to life and also made him a new penis out of gold because his old one got eaten by a fish, and then zombie Goldmember got her pregnant.
- Horus's "twelve disciples" were four gods and maybe sixteen humans.
- Horus's "crucifixion" was a scorpion sting. He was resurrected by some dude, not by his own power.
But Christians are the ones who oversimplify (Seriously, "performed miracles"?).
(
This is the guy (who happens to be an atheist) that I was talking about that said he couldn't find any sources that said Horus had a star. And now my post is officially better-sourced than that jpeg.)