Why do I have to "endorse" any of them to consider that they may be accurate? Why do you endorse a theory that has NO supporting evidence behind it?
We're in the same boat then. I think that LHO acted alone (which you say has no supporting evidence) and that is the best current theory. It may or may not be correct but I have seen no specific alternate explanation. You think the 2 Oswald theories may be correct even though all they do is point out discrepancies in the record. BTW, the 1981 exhumation debunked the Eddowes theory and I believe all the other theories are similar and therefore debunked as well.