I think if there is anything decent left in Trump (and I think he's highly damaged from childhood) the presidency isn't where I would like to see some real life "test" of this. And honestly, his actions speak much louder than his words. I see his actions as harmful and an incapacity on his part to understand that. I think he's leading the country to ruin, and in that sense it doesn't matter how he feels inside.
If what you say happened to him I suspect it happened in childhood. Adult Trump despite changes in cognitive ability with age has seemed relatively consistent in interviews. Things leaked of him speaking when it wasn't public show the same personality. The same personality in other words seems to appear in public and "private."
If you're arguing Trump is lost to himself btw, that to me is an argument for him not being in office. Someone lost to themselves can't lead wisely or well. A shell of a man that once was leading a nation? Not good.
Also I don't want to get into a vote for him/don't vote for him argument and hopefully I'm not doing that but maybe I am.
Anyway I'm fond of redemption and I hope Trump is able to get better if it's possible, just well, on his own time, without as they say having access to the nuclear codes (tired old trope).