This page now gone from HD Furys (now gone) site lists many other solutions that are true strippers:
Anyway, one of them looks just like a $38 aliexpress ultra HD splitter.
Anyone ordered one of them and confirmed if it works to get a 4k amazon fire TV working on a TV without HDCP 2.2 support?
This is the one I am ordering, but if its a no go then I will probably look for the HDfury integral if I really care enough.
They all seem to list that they only do 4:2:0 at 60 Hz but as the fire TV cant do 60Hz anyway that's not going to be an issue for me right now.