"The day" that you are talking about is mid-19th-century. A lot of things that they believed 150 years ago did not turn out to be right. No swastikas are found in any other branch of Indo-European. It originated among the Dene-Yenisei group of the northern steppes spanning from Siberia to the Yukon; from the eastern end, the Navajo brought it southward to Arizona and northern Mexico; from the western end, the Tibeto-Burmans brought it southward. Indics borrowed it, but no other Indo-European group had it.
Whose war god? I don't recognize "Esus" either. There is a ton of pseudo-mythology that you can find on websites which was actually invented just the day before yesterday.
No, Zoroaster posited that Ahura Mazda had
seven, not three, emanations; Asha was one of them, but Mithra was not. Much later, pagan deities like Mithra were re-adopted into Zoroastrianism (a betrayal of the original intent).
If you give purported
quotes, you should give a source.