Agree. However, it’s not really known by most people that that is the defense’s job. “Justice” is entirely the responsibility of the prosecutor. They have to prove it beyond a reasonable doubt, they have to do it correctly, and if they find anything that undermines their own case they have to present it. The defense does not, that’s the way our system is set up.
Television and other media makes it look like the defense is also responsible for finding the truth and making everything just. That’s incorrect. Defense’s role is to keep the overwhelming power of the state, and all the tools at its command, including corrupt police, etc., at bay.
So is this a stupid argument? Oh hell yeah. But when you can’t pound the facts, pound the table.