Literally ALL the evidence...
WOW. You've really zeroed in on it.
Every single witness to Oswald's whereabouts puts him in the 2nd Floor Lunch Room
Just who might that be?
...Truly & Baker, new witness
Baker was on his motorcycle on Houston St. when the shots were fired. Truly was watching the motorcade from in front of the TSBD. They would have needed x-ray vision to see Oswald in the lunchroom. Try again.
Sarah Stanton, Dougherty, Carolyn Arnold,
Are you saying these people saw Oswald in the lunchroom when the shots were fired.
Oswald himself
Well I guess that settles it. Oswald said he was in the lunchroom when the shots were fired? Why would we doubt his word about that?
Buell Frazier (who said Oswald's partly-eaten cheese sandwich and apple were seen on the 2nd Floor Lunch Room table),
Did Frazier see Oswald at the table with his cheese sandwich and apple?
James Hosty who said Oswald admitted he was alone in the Lunch Room during the assassination...
And of course, we have no reason to doubt that. <chuckle>
There are no witnesses to Oswald being outside on the front steps top platform during the assassination...Frazier said Oswald wasn't there...Yet the dysfunctional CT community keeps insisting Oswald was there out front in order to indulge lunatic fringe researchers and their pet theories...
You are correct. No witness said Oswald was on the front steps during the shooting and no witness saw Oswald in the second floor lunch room during the shooting. No one provides Oswald with an alibi. From my perspective, the people who claim Oswald was on the front steps during the shooting are no more or less loony than those who insist he was in the second-floor lunchroom during the shooting.
The only witness who said he saw Oswald during the shooting was Howard Brennan. He said Oswald was in the 6th floor sniper's nest firing the rifle. He is corroborated by Oswald's fingerprints on the boxes in the sniper's nest, his palm print on the murder weapon, his shirt fibers on the butt plate of the rifle, and his palm print on the bag that contained fibers matching the blanket Oswald used to store his rifle. There's also a paper trail establishing Oswald ordered the murder weapon from Klein's and pictures of him holding the rifle. I guess all that is no reason to believe Oswald was the assassin.
As for all the other people you mentioned, not one of them saw Oswald in the lunch room when the shots were fired and thus do not establish his presence there when the shots were fired.