"Not enough ice melt to cool that volume of water to the degree measured."

True. But even if there was enough ice that melted, it would affect deep water temperature, whereas I believe they are mostly measuring global ocean surface temperature.

Btw, I didn't accept the data that indicated that global ocean temperatures were increasing- mainly due to the historical record of ocean temperature were not accurately taken.

If you remember the idea that was promoted was that ocean temperature were storing excessive heat that "should have been caused by human caused global warming". In other words all the big increase in global temperature that "everyone" expected was being "hidden" in the form of increased ocean temperature and all this added heat in the ocean would at later date cause the massive increases in global temperature that "everyone" expected.
Whereas I accept the idea that the oceans largely control global temperature, I wasn't buying the idea that the oceans were acting as the Hidden Imam of global warming.