Ross is a prick. But an attack on American soil is still an attack on American soil and that's why they're going to treat it as such. Until we can prove it was an accident, which it was. We all know Thor's not a terrorist.
And Loki's a little Froot Loops, but that attack on New York was a Thanos plan, not a Loki plan. So them throwing him in jail and not allowing anyone access or even acknowledging if they've offered him legal council is total bullshit too.
I want to help too, but you and Wakanda are better equipped to help New Asgard right now.