Why do you insist to keep on displaying your gullibility and complete lack of thinking skills?
One does not have to advocate a conspiracy (before the fact) to conclude that there was a cover up after the fact.
The WC had a narritive they wanted to sell to the public, but they clearly lacked the evidence to present a compelling case.
For instance, they had no real evidence to place Oswald on the 6th floor with a rifle in his hand at 12.30 on 11/22/63, so they did the next best thing; they created a set of circumstances that would allow a superficial person to conclude Oswald was indeed the killer, regardless if he actually was or not.
For this purpose, the bag Frazier saw Oswald carry had to become big enough to conceal a broken down rifle, Dorothy Garner was ignored as a witness to allow Oswald a way to leave the 6th floor and Oswald had to be seen in the shirt of which similar fibers were allegedly found on the rifle. Bledsoe provided the perfect way to do the latter. That's the only plausible and logical explanantion for which the arrest shirt was brought to Bledsoe's house prior to her testimony.
But I'm sure that's all way above lyin' Richard's head.
Oswald shot Tippit and probably shot Kennedy.
Frazier wasn't paying attention to the bag. In the genpop view, he was the guy who drove the killer to the scene. Frazier didn't want to be known as the killer's chauffeur for the rest of his life.
The other Frazier threatened him physically, while the notorious vulture Henry Wade hovered overhead: Why help the cops throw you to the wolves, mulled Lillie Mae..