It means Trump has the maturity of a juvenile.

He's such an idiot.

I wonder sometimes if he has even worked out object permanence.

juvenile to insist on getting thanks before they've really had a chance to offer it.

racial to assume they'd be ungrateful (if they were white, would he make that same assumption?)

also, generally, accusing black people of being "ungrateful" is a racial dog whistle.

well, most dog whistles these days are getting quite loud to the human ear....

Chorus:

Then Donald Trump appears on my teevee
How great I art, how great I art
His orange face is there for all to see
How great I art, how great I art

"see, I'm not a racist, I got those basketball players out of China"

It's how his feeble mind works. He probably thinks he singlehandedly improves the lives of all Chinese Americans because he gets his suits dry-cleaned.

He's a racist asshat, and Omarosa probably told him he needed to highlight how he was nice to some black folks.

to highlight how ungrateful "the blacks" are when a powerful white man deigns to help them rather than to crush them. F**k him. The basketball players, if they have any sense, should never utter a word of thanks to this white supremacist douchebag.

of people in this country serving long terms in prison for minor crimes. I'm so sick of him praising himself.

He never seems to have had much going on mentally, and appears to be deteriorating since taking office. Never having had a job before, he must be exhausted by even the minimal presidential routine of ordering others to do his work.

so he can claim he is a victim of the ungrateful "inner-city thugs". Wouldn't put it past him.

And, if they didn't, his huge vanity can't tolerate the distorted perception of a slight.

The man is seriously disturbed and twisted. What grown-up man would have thoughts like this ?