Your first mistake. Jerry Reynolds was a complete idiot when he ran the Kings. Nothing has changed, except now he's a talking head.
As for the rest of that post...its not one of your best. Not sure where to even start.
Let's see: you mention Dallas, Phoenix, Miami, Utah and San Antonio in various ways. But seem really shaky on the history. San Antonio DID tank, were rewarded by Duncan, and won a title within 2 years. Phoenix also tanked, blew up a #8 type team when they traded away Marbury et. al., and got Amare (as well as the cap room to get Nash). Miami did not tank so much as lose their franchise guy in Zo, much as we did with Webb. They however went with it and got bad. Because of that they drafted Wade. They won the title last year. Dallas was bad forever. By being bad forever they drafted Dirk (actually traded down 2 spots in the draft to get him). Dirk may well win the MVP this year as his team rolls to a title. Utah lingered too long with the Stockton/Malone duo, took a dive, freed up massive capspace to sign Okur and Boozer, and were bad enough (25 wins) to draft Deron Williams at #3. And whadya know, here they are again.
NONE of those teams even remotely supports your position. Quite the opposite.
As for your proposition that it takes years to clear a losing attitude -- you are right, but not in the way you think you are. It takes years to clear the losing struggle we are engaged in now. The drab medicority. On the other hand teams ROUTINELY change losing attitudes in the space of a year. ROUTINELY. But they do it preceisely by rebuilding. New personnel = new attitude. Every year you see it. Every year. This year its Utah, Toronto, Orlando. Last year the Clippers, Cavs, Lakers and to the degree thye kicked it up a notch, the Mavs. The year before that the Suns, Nuggets etc. etc. Every single year "losing" teams are reborn like the mythological (not city) phoenix becasue they are smart, rebuild, and reemerge. In fact you are ignoring the history of our own franchise: the only reason the Kings ever became good is because they were "losers" with a "losing mentality", and it took all of one summer to change all of that. Big cap room and a FA (Vlade), a lottery pick (JWill) (actually two lottery picks since Peja came over the same year), a good trade (Webb), a total rebuild. And in one year we went from "losers" to NBA darlings.
Being drab is what you cannot recover from. Being boring. Being mediocre. Not having a plan or a hope. Losing is nothing. Its part of the process. Medicority is what is deadly.