P.S.S. I am aware of Satoshi's view on this "lost coins are a donation to everyone". Yes, but 4 million is a lot, do we want Bitcoin to still be used 1000 years from now? If this trend continues most if not all bitcoins would have been lost by then.
With all the stuff that are happening around the world it will be a miracle if our nephews will be able to live a normal life and you're worrying about bitcoin being used or not in 1,000 years? For all what we know bitcoin may be obsolete in 10 years, who knows, everything is possible. I believe in bitcoin but you are definitely worrying too much. It wasn't a problem for Satoshi, why should it be for you?