Why do people post this stuff on social media? Rick Jr is begging for attention. Does anyone really think he wouldn't wish the kid well, so he needs to broadcast his sympathies and "positive vibes" on Twitter just to clear things up? As the (unqualified) QB coach at a major program he could probably get Milton's direct number in a second and privately text him best wishes. Or even just DM him on Twitter and keep it private.
Instead he decided to use the platform to seek attention. Well, he got it. I don't condone it and would never participate (have to be a loser to waste time doing this kind of stuff), but Rick Jr brought some of it on himself.