How do you downplay the Antarctic sea ice gain and exaggerate the Arctic sea ice loss? Easy: compare the (change in) summer Arctic sea ice extent to the (change in) winter Antarctic ice extent, so that you're not comparing apples to apples and oranges to oranges.
Here is a tweet from Climate Reality:
You can see it's interpreted by their followers that the Arctic has lost 6 times as much sea ice as the Antarctic has gained.