First of all it is being reported that LeBron and/or his folks contacted KD to see if he was interested in possibly going to the Lakers. Whether you choose to believe that report or not is up to you but it is out there.
Secondly James Harden when questioned about James coming to Houston said the following; “I don’t think there’s a piece we need to bring in or take away. We’re great with what we have...." If that's not exactly saying he doesn't want him there it's pretty darn close.
Thirdly, last year it was reported that Paul George wanted to go the Lakers in 2018. Once again whether you choose to believe that report or not is up to you, but it is also out there now that he appears to be on the fence. Whether that is due to LeBron possibly going to Los Angeles who knows, but if George decides to stay in OKC its one more player who it looks like could have joined James in L.A. (if he chooses to go there) but chose not to.
Fourth, Kyrie Irving did run away - no arguments there.
Lastly Isaiah Thomas may be considered "crap" now but there were plenty of people a year ago when he was traded to Cleveland for Kyrie who thought it was a decent deal.