Simple. Probably search engines will not allow links to venues where they have to pay. Those who seek payment will simply lose their viewers.
Probably FR will not allow links to paid sites. (When we go to those sites now, via link, they demand either payment or subscription to read the rest of the article.)
Enough free stuff will be available that the impact to FR will most likely be negligible.
It’s odd, Walter Lippmann in his 1921 book “Public Opinion’ addressed this issue, that people expected their news for free.
The law unintended consequences will not pass away.
The road to hell is paved with good intentions.(and greed)
What about Drudge?
Freepers posting from sources unfriendly to the exemption for fair use of copyrighted works should learn to re-write the source material and post their own version here.