Nirvana Fallacy
The Fallacy
Saying a good idea is bad just because it's not 100% perfect.
Why it's wrong
Sometimes things make a problem much better, even if they don't fix it completely. Better is still good!
Example
Wearing a seatbelt won't protect you from every single bump ever, so there's no point in wearing one at all.
What the Fallacy?! (ELI5 Edition)