Well no, if you are actually truly in your heart subscribed to any major religion, after your death its not 'your' body anymore, just some leftover soon-to-rot

Well no, if you are actually truly in your heart subscribed to any major religion, after your death its not 'your' body anymore, just some leftover soon-to-rot garbage on the level of trimmed nails or cut hair, nothing more. In fact, its rotting garbage regardless of your beliefs, nature doesn't care about those pesky things. The other side is about saving actual lives in no small numbers, so what OP describes are tons of lives saved by just amending bureaucracy slightly, while preserving all those 'freedoms' that people like you keep repeating ad nausea anytime anything worthy is discussed. If you actually really care about those freedoms, doing 2 minute bureaucratic work (or 5 seconds) every 5 years is no brainer. But if you just have knee jerk reactions to any change, well thats another problem on your side that is no concern to rest of society.