First, arctic temperatures: this is a widely misunderstood point. Notice that in the graph, the non-summer months are noticeably warmer. The summer months are going to be effectively capped at around 0 degrees until all the ice is gone, so holding up this graph and saying "look, the temperature never got above freezing!" is misleading, because the "warming" is actually happening as a function of melting ice, not air temperature.

Sea ice extent: the last 18 years were the lowest 18 minimums on record. Also, ice extent != ice volume. March 2026 recorded a record-low ice volume. An extent chart reads the same regardless of whether the underlying ice is thin or thick.

Greenland mass balance: here you're just plain wrong. You linked to the surface mass balance page, in other words, snowfall minus surface melt + runoff. This does not account for glacial calving and basal melt. The page you linked says this directly. Total mass balance is a grimmer picture: an average loss of about 252 km³ of water per year over 2003-2025, contributing 0.69 mm/yr to sea level rise.