I don’t think anyone means to disparage the very real concerns facing USians, and I think non-USians recognize this affects every one of us regardless of country (I recently made a comment regarding this exactly).
I think that commenter was just using humour because it’s quite overwhelming that within a week-- Trump’s been shot at and Biden is stepping aside.
If us outsiders are feeling this, then I imagine it is so much worse for USians. I am empathetic to how stressful this must be, and hope for a candidate who annhilates Trump and leads your country towards healing.