Get used to it. This is the way the industry is going, for very good reasons. Increased demands for more (or same) performance at lower power means you want more connections with shorter traces, and more functionality in the same chip or package. It seems likely that eventually all components except primary storage (SSD) will be in a single package.

On the flip-side, we've gotten external GPUs through Thunderbolt. So we've gotten the ability to extend laptop GPUs.

Another positive development is that SSDs are likely to continue getting faster. Maybe RAM won't be upgradeable anymore, but if Intel can push out their Octane/3D XPoint tech, you might get SSDs so fast that you can get almost the same benefit swapping to a faster SSD as upgraded RAM.

I mean, you've never been able to upgrade your CPU cache. If RAM is a glorified cache for the SSD, why complain that you can't upgrade that anymore?

Maybe one day SSDs will be soldered on in laptops too though :/