Might want to revisit the regulations of the country you're living in. Ireland [1] and, apparently recently, also Germany [2] at least have largely taken back the ban. If you're fluent in German, you can read the factual basis on which the RKI made its decision here [3].
Amazing, looks like the ban was lifted where I live in NL in May 2025! Thanks for the heads up, I had missed this, despite being fairly certain I had checked relatively recently.
[1] https://www.giveblood.ie/can-i-give-blood/keeping-blood-safe...
[2] https://www.blutspendedienst-west.de/magazin/blutspende/mehr...
[3] https://www.rki.de/DE/Themen/Infektionskrankheiten/Blut-und-...