There will ALWAYS be a debunking, a denial, a loss of credibility, an ignoring. As for example, all the people who were gathered in Dallas the night before the assassination: Nixon, Bush, etc. As one researcher told me, everyone in government knew about the hit except JFK. I suppose he was exaggerating to make a point.
Did you see the You Tube video of the secret service guy protesting as he was told to stand away from JFK’s auto when they approached Dealy Plaza? There are so many unexplained things out there.
Conspiracists tend to rely on a lot of bad information, which you are demonstrating here. Most of the things you can go an cite from conspiracy sources are junk. Old stories that were never true and have even been disproven many times, but never die and keep being repeated.
NIXON? NIXON! Now you’ve pulled the brass ring! Mention Tricky Dick and the case is closed!