That explanation ignores the “fix it” comment. Even being extremely generous and going with the line of thinking that you proposed and further adding that by “fix it” he meant that he would fix all of the problems of our country within the next term, that would still require the assumption that he has no values for which he believes needs to be stood up for after next term. Or more specifically that he doesn’t think it matters who is elected in the future. While I do believe that he is extremely egotistical and to a certain extent doesn’t care about anyone else, I have a hard time believing that he would be equally okay with anyone being elected even after his presumptive second term. The only way that I can see any of these comments making sense is if he is talking about rigging or altogether doing away with elections.
And to be clear I’m not trying to argue with you since I understand you aren’t saying you agree with the statement you made. I’m just pointing out that you would have to do much more mental gymnastics than even that in order to get to some sort of excuse for those comments.