1) There is no risk of archival nodes being obsolete, 2) Bitcoin doesnโt die in this scenario so long as Bitcoin has miners mining btc can chug along just fine it just has massive security risks with validating nodes to check it
Too many nodes running pruned data is often mistaken as a risk bc people get concerned about the lack of tx ids in a lame jpeg scenario but both knots and core are running pruned data and almost no one uses anything else
There will always be people running archival nodes and actually a lot of miners run archival nodes to check themselves irl
I cannot express enough how much these people online are cosplaying for marketing reasons
Bitcoin is in exactly zero existential risk- itโs a total non concern