This world is really a mess. Police trying to be heroes and save kids get suspended, cowards keep their job and pensions at the FBI and Broward Co, and the NRA is the one at fault, killer is a Dem, but Republicans have blood on their hands is the meme. I can’t even describe how I feel anymore.
You state the problem plainly, the problem is the lock on the minds of the middle and the left that the mainstream media still have. Online memes are very effective with younger people who pay attention to such things, and you’ve laid out the basis for several. They can be quite simple but devastating when in wide circulation. For instance, create a JPEG with an online meme generator. Photo of the killer, Cruz. Below, bold all cap headline: DEMOCRAT. Below that, smaller text, just as you wrote it: “... but Republicans have blood on their hands?” The simpler and more ironic the better, just lay out the hypocrisy. Then start posting it, welcome others picking it up. With any luck it’ll go viral. That’s one of the few ways around the chokehold of the MSM. Trump’s a master at it, unusual for an old dude but he is, and it can happen.