Personality is merely the result of experience, shockingly if Powell lives his life in different circumstances and experiences different events he'll be a different person. Denying that, that everyone is simply made of stone to be fit in as you pleased is far more ASB.
A person is who they are. The personality formalizes around two years old or so: everything after that is variations on it and evolutions of it, but the template remains what it is. Colin Powell has said himself he is too disinterested in politics when it came to the issue of running for president, which is a strong hint that his personality and just who he is wouldn't have him run for president.
If you have a completely different life, then ok, but let's be honest here. What you guys want isn't *Colin Powell, it's Colin Powell. You don't want a different person with the same name and body, you want that person we know as Colin Powell. But that person said he didn't want to be president, and it doesn't seem like the reasons for that are something you can change with being inspired by some political speaker or something. It'd have to be something early and big, but that means he's a different person. Something key to discussing alternate history is to realize things that weren't going to happen on the plain reality of things, despite wanting them to happen or thinking they could happen, and accept that the facts and the way things are don't jive with them. Otherwise, you're just doing wish fulfillment. Another important thing to learn for an alternate history discussion is that not everyone, and in fact only a limited number of people, care to hold elected office or different elected offices. Not every Congressman wants to be a Senator, not every Mayor wants to be a Governor and not every one of those other offices wants to be president.
Those are two things I've come to understand in my time on AH.com and looking over alternate history stuff.
You could have some extraordinary or odd or specifically precise set of circumstances occur to make him president or push him to it. You could also use those to get Chevy Chase to be President. But under normal circumstances it's just not in the cards.
Now, if he came out later and revealed something like "Well, I might have" or something like that, then that would indicate him as being different than the statements have made him seem and that would open up the prospect that yes, he could have because that would mean as a person he was open to doing it. On the evidence there is, though, I cannot conclude anything but Colin Powell did not want to be the president of the United States.
But then this whole thing really seems to be you just being ideologically upset at the discussion here.
I don't know what exactly you mean (which should go along with an indicator that it is wrong in the ways that I assume it may mean), but I'm not ideologically upset, and shame on you for saying so because I know it's meant as an insult wrapped in intellectual trappings and it is also meant as a dismissive of everything I said.