If they really cared, like myself (1215B owner), they would be giving money to Tuxedo, System 76, Dell, Asus, and whatever else that is shipping hardware with Linux distributions pre-installed.
I am very tempted to go back to Linux sometime next year, but I really fear I'd end up in the same situation (or worse, since I'm also reliant on scaled HiDpi screens now and support for that sort of thing is completely absent in some distros).
Of course it depends on how you configure it but if you've really de-bloated your system you can get much more out of the battery than Windows can. I've been able to get more battery out of a recent Inspiron, a less recent Toshiba Satellite, this Thinkpad, and an old Samsung netbook, so I could be biased by my hardware.
Nowadays it's much easier to get higher-level Linux support, too.
Can you elaborate on this?