You're right I have no more intimate knowledge of his internal feelings than you do. I have however seen enough humanity in him to believe he has more empathy than Trump who has a very well documented history of narcissism bordering on psychopathy.
As for my "care" of his humanity being besmirched, I don't actually. My issue was with your questionable assertion that he doesn't care and the implication that maybe (but maybe not) you actually think Trump cares more.
As for his actions as the president of the united states, who has the full weight of international geopolitics, national politics, and an election to consider, I'd say the job is no where near as simple as you'd like it to seem and as much as I hate (or don't hate but am resigned) to admit it, there is a limit to what the United States can actually do to make a difference in Gaza that might not have other undesirable results.