Earlier quoted context omitted.
Vertical integration has its advantages. Also, due to people buying new phones every 6 months those seem to be the two things that disincentivze Android phone makers to not do those things.
You can change that: don't buy a new phone every six months, and buy from a maker that supports your phone longer. Maybe you cannot get the latest, but when you support the companies that support their phones for more than a few months you support that business model which in turn ensures that someone who updates their phones exists. You might have to leave the major names behind, and might have to skip a few feature…
Who would those be? And who of those is not on the high end phablet side of the phone market?