They most certainly planted their Sun God standards in the holy ground that ran for several furlongs out from the walls of the city, and covered the entire inside of the temple with the blood of humans - not pigs - by their Roman swords. Ezekiel says the most offensive of all abominations is Sun worship, placing the creation in stature above that of the Creator.
Again, you can't cut off the 490 years from the 2,300 if you leave them as only 6 1/3 years long.
In making the 2,300 literal days, you are at a loss to explain how the 70 Weeks can be amputated from them. Gabriel's words make no sense at all. If we're going to be true to hermeneutics, we can't skip over that verse which plainly says the one is cut off from the other, especially if we fail to recognize it's impossible to amputate a giant whole from a speck.