I think Jarod Sexton has good reason to be afraid, as do any other 'high profile' journos.
I'm reminded of the rash of bombings/shootings at abortion clinics here in the late '90s. Evangelicals started prating about 'judgement' and 'wrath of God' and before you knew it, unbalanced people were considering themselves 'Arms of God' and shooting at providers and planting bombs in clinics insisting they were justified in doing so, that it was 'righteous action'. I'm afraid we're going to soon begin seeing the same 'bent' people starting to believe they're acting 'for the good of the Country because, you know, Trump'. It's scary.
As far as Trump's tweet about poor Charlie Gard, it's just another proof of what a prick he is and what a loose (non-) hold he has on the realities and dignity of the presidency. He tweeted to make himself look good to his fans; "See how wonderful I am, I'd save Charlie if I could". How low can you go, using a sick child for 'brownie points'. It's disgusting.
I'd go further and say that while their ineffecticely parenting the toddler, they're also happy for you to be distracted by the horrendous behaviour while they surreptitiously sneak all the food at the communal picnic into their bag, without having brought a dish to share to begin with.
Ha Pain! You've hit that nail on the head!