As this blocklist issue gains increased contemplation lets not forget that this is a "new feature". Lets consider the silent remote access subterfuge that has become known as "software updates".
Therefore, as this is a "new feature", 1. it does not apply to older computers, particularly ones that are not remotely acessible by others to install their opaque "updates" and 2. on newer computers these lists can only be dynamic if the owner allows "software updates".
The moral of the story is (a) not all "new features" are ones the computer owner may want, and (b) older computers have value, if only becoause they lack the bad stuff that greedy, manipulative, overreaching "tech companies" are building into new ones.
There is nothing wrong with updates so long as they are granular1, transparent and optional2. It is the owner's computer and the owner has a license to the software installed on it at the time of purchase. Any party wishing to install new software on the owner's computers should need the owner's permission. Owners should have a reasonable option to deny such permission and to review and install updates themselves, or to reject individual proposed "new features".
1 Here "granular" means avoiding a situation where the user has to install a feature that she does not want in order to get a feature she does want.
2 Manual installation of updates should always be possible.