The real story:
Pacific sea levels rising very slowly and not accelerating
Parker A., Ollier C., 2019. Pacific sea levels rising very slowly and not accelerating. Quaestiones Geographicae 38(1), pp. 179–184. 3 figs.
Abstract: "Over the past decades, detailed surveys of the Pacific Ocean atoll islands show no sign of drowning because of accelerated sea-level rise. Data reveal that no atoll lost land area, 88.6% of islands were either stable or increased in area, and only 11.4% of islands contracted. The Pacific Atolls are not being inundated because the sea level is rising much less than was thought. The average relative rate of rise and acceleration of the 29 long-term-trend (LTT) tide gauges of Japan, Oceania and West Coast of North America, are both negative, −0.02139 mm yr−1 and −0.00007 mm yr−2 respectively. Since the start of the 1900s, the sea levels of the Pacific Ocean have been remarkably stable."
This says that the Pacific Ocean level over recent decades has actually been dropping, super slowly, at the rate of 0.08 inches per century. There are some locations around the Pacific Rim where coastal land is subsiding but that has nothing to do with the ocean level itself.
Maybe he could put his son on the board of an organization that would make Antarctica colder. He could call it MACA which is Make Antarctica Cool Again.