That is insanely broad and vague. You can be responsible for knowingly designing a system for abuse, or if you give it to someone you know, or have reasonable cause to suspect, will abuse it. But what you're saying here is that if you ship anything at all, and someone somewhere finds a way to use it for some nefarious purpose, then you're responsible. That's not how things work with anything else; why should they work that way with software?

That aside, in US specifically, there's already something that is more narrowly tailored to our current reality. They aren't accepting new signatures because of how many there were, but you can still make the same pledge (and e.g. share it publicly to have some skin in the game):

http://neveragain.tech/