That comment wasn't directed at you.
My point was, Johnson didn't want to know if there was a conspiracy because he didn't want to deal with the consequences. He had suspicions but didn't want to investigate the conspiratorial leads. He didn't ask the questions that he didn't want to know the answers to...
What evidence is there that he restricted the ability of the WC to look for a conspiracy? The WC staffers, a few still alive, say there were no orders not to look for a conspiracy. You've said he covered up for one. How? The fact that HE didn't want to look is not the same as saying the WC or HSCA or CBS or The Washington Post or ABC News or the NY Times didn't. We haven't just had one investigation over these decades. We've had multiple ones.
I've cited Norman Redlich, the main author of the report. He died in 2003 or nearly 40 years after the assassination. I don't think he ever said he was told not to look for one or that, in retrospect, he was misled/controlled/manipulated. The only staffer that I know of who has complained about being misled was/is David Slawson. He has stated that he thinks Cuban agents encouraged Oswald to shoot JFK and that the CIA withheld information about this. But that's not really a conspiracy.
You say LBJ didn't want to know if there was a conspiracy and then you say he thought there was one (by Castro). But the latter statement by him - that he believed Castro was behind it in retaliation for the assassination attempts against him - came AFTER the WC had completed its investigation.
I've read no evidence/accounts that during the WC investigation that at that time he believed there was a conspiracy. Correction: LBJ did say in his last interview before leaving the Presidency that "I never believed that [Lee Harvey] Oswald acted alone, although I can accept that he pulled the trigger."
Are there any? And why would he not want to deal with a conspiracy done by, for example, the Mob?