Earlier quoted context omitted.
Is the lack of a secure door to your property something that would hold you back? I doubt that. Still, secure doors are important.
Do you have blast doors installed home? Anyway, not sure how exactly ECC relates to security. Is there any specific attack vector where it helps?
A blast door protects against explosions – a very unlikely scenario, that will happen to practically nobody. ECC protects against bit flips in RAM which happen significantly often ( https://www.cnet.com/news/google-computer-memory-flakier-tha... )
Your comparison is inadequate.