Home button, would be a serious backward step for me, Ive seen a few people gurning at thier phones, much prefer to just thumb the button.
Headphone jack, I detest earbuds, I find them uncomfotable and annoying. so as well as not wishing to move on from my folding skullcandy travel kit, I also find use from time to time for a 3.5 jack patch to connect to non bluetooth kit.
Glass casing. Its hard enough keeping the sccreen intact, I live out in the real world not farting about in a nice warm office with carpets and other soft furnishings, so pretty arty farty glass backings are of zero interest to me, my 6+ lives in a Griffin Survivor case, Ive never needed to replace the screen or any other part of the casing.
The current overpriced line up has zero attraction for me, so once the security updates stop I may well turn off mobile data, dump apple pay and any other financial apps and just use it as a phone and text message unit.
The next phone might well be something with LineageOS, it wont be Apple, because despite liking the OS, I hate the hardware they are producing, and the grossly inflated pricing, I may even look at popping an alternative OS into the iMac.
Well Done Tim Cook heres just one household you have alienated.