AMP pages will not hijack your website. G does not use AMP in its ranking algorithm.
1. Where is AMP acceptance?
As I read the situation, Google is in the very earliest days of experimentation with AMP. (AMP is a Google initiative.)
There are many communications limitations imposed by AMP and I'm yet to be convinced that its primary benefit (viz. Load speed of the simplest form of web pages) will be enough to ensure widespread acceptance.
IMHO, AMP seems aimed at G's advertising partners - news websites and blogs, those that distribute G's advertising network.
IMHO, this is a biased article on AMP. Even so, if the "125 million" AMP pages number is correct, only 0.1% of web pages have an AMP version. (Google says it has indexed 130 trillion documents.)
2. AMP's impact of SE referrals
G does not apply a ranking boost to AMP pages.
The much hyped boost G. gave to mobile pages was so small that many SEOs did not even notice it had been implemented. It seems unlikely that AMP pages will be given a ranking boost unless they attain a significant presence on the web.
On current info, I doubt AMP will ever achieve this status. Here is a recent John Mueller (Google) video on the topic.
Jan 2017: Google: AMP Not Ranking Factor But If AMP Page Is Canonical, It Will Be Used For Site Quality
3. What will G do in future?
Who knows? G seems to be running scared of Facebook, Amazon, Apple, Microsoft and a bunch of competitors we can only guess at.
IMHO, the world of information retrieval is being diversified and transformed. G owns the world of search for text info on web pages. At this point, they have lost/look like they are losing all the other forms of Internet information retrieval.
What G can't do is make sudden changes to their ranking algorithm because they need to be able to use ranking factors implemented by most of the web users.
I'm telling my clients to hold spending on AMP until we know:
- if it has a permanent presence on the web
- we know what impact it has on search results
Right now these answers mean nothing.