"Nice ocean you got there, be a shame if it wasn't there anymore" = by the grace of not having a ruthless killer at your doorstep, you reap a prosperity you have taken for granted, wealth and riches you did nothing to earn or cultivate, but took and now squander.
That's what Trump heard, no praise.

What Trump took most umbrage with was Zelensky implying (and rightly calling out) that America owes it's safety, it's security, and it's claim to "Greatness" from the 𝘧𝘰𝘳𝘵𝘶𝘯𝘢𝘵𝘦 isolation provided by two "nice oceans."
You can hear Zelensky's matter of fact statement, and misinterpret it as a threat.

a little more oomph, Chucky, pls.

THE UNITED STATES PRESIDENT IS ACTIVELY ENGAGING IN THE MOST DESTRUCTIVE POLICY POSSIBLE TO PUNISH EVERY AMERICAN FOR REMOVING HIM FROM THE WHITE HOUSE ONCE, AND HE'S DETERMINED TO DIE THERE AND BURN IT DOWN IF YOU TRY TO TAKE IT AWAY AGAIN, AND THE TECHNOFASCISTS ARE FUNDING EVERY SECOND OF IT.

THERE IS A PALPABLE, INTRINSIC FEAR OF FLYING THAT IS NOT BEING ADDRESSED, OR FIXED, BECAUSE THE RICH HAVE THEIR OWN PRIVATE JETS, AND THEIR OWN PRIVATE ISLANDS TO FLY TO; AND WHATEVER YOU NEED TO TRAVEL FOR ISNT WORTH MAKING SURE YOU GET THERE SAFELY.

YOUR GAS IS GOING TO INCREASE, A FAMINE IS BREWING WITH THE NEEDLESS, CAVALIER WASTE OF PRECIOUS FARM WATER FOR A PHOTO OP; YOUR NEIGHBORS ARE AT RISK OF BEING UPROOTED, BAGGED, GAGGED, AND TORTURED; YOU ARE LIVING A CONSTANT MISERY OF HAVING TO HEAR ABOUT ONE AMERICAN NORM BROKEN AFTER ANOTHER.

CFPB, OSHA, DOE, ARE ALL ON THE CHOPPING BLOCK THANKS TO ONE GOP REP FILLING 900 BILLS ON BEHALF OF AN OLIGARCHY LOOKING TO CARVE THE AMERICAN ECONOMY LIKE OL' BEN FRANKS BELOVED TURKEY.

THE CHINESE SURVEILLANCE STATE AND CREDIT SYSTEM HAS BEEN UPLOADED BY MUSK AND HIS EPHEBOPHILIC GOONS STRAIGHT INTO THE TREASURY MAINFRAME, HOLDING A BOX CUTTER TO THE THROAT OF SOCIAL SECURITY AND THE REST OF THE SOCIAL SAFETY NETS