Earlier quoted context omitted.
And what should we ask for? There is stuff to complain about with the DMCA, but the core process is reasonable. Someone claims copyright infringement by a user, and the website takes the content down. The user claims no copyright infringement, the website restores the content. The website is immune from liability, the alleged copyright owner can settle things in court with the user if they want to.
You should ask for immunity for tools that could potentially be used to infringe copyright, but that are not actually infringing copyright. If guns don't kill people, people kill people, then certainly congress can accept that software doesn't pirate copyrighted works, people pirate copyrighted works.
Sure one might argue that if you have the intent to kill, it's not necessary for one to use a gun, you have alternatives such as grenades, knives, chainsaw or even your bare hand if it's lethal enough. This is how you derive that "the gun is not evil, it's the people who are" statement.
But guns, under the category of firearms (not only guns, what about rocker launchers?), are almost-certainly designated to kill, and what is the top priority of firearm? Aim to be the most efficient killing machine.
So if you use a gun, it's not necessary that you are going to kill people, but it is very likely that you are imposing a threat to do so, regardless of if you're attacking/defending.
Therefore, trying to apply the gun analogy to current state of youtube-dl is an injustice to youtube-dl, as you compared an intrinsically evil entity to another.