If you’re from outside the US, then what’s your stake in this?

I don't know maybe the fact that the us is a giant murderous empire that kills thousands(+) every year through direct military action and indirectly through financial warfare and has destroyed multiple countries? Really confirming Americans don't see people outside euroamerika as human.

I was talking to the fuckface saying that both parties are equivalent

Which party destroyed Libya? Which party oversaw and supported the beginning of this current escalation to overt genocide in Palestine? Which party filled Serbia with depleted uranium that continues to have negative effects in health outcomes to this day? Which party oversaw the drone strikes on weddings and innocents in Yemen and across the middle east?

I could keep going and also talk about the bi-partisan enforcement of sanctions that kill thousands(+) every year, or the backsites like Guantanamo that continue to run under both parties and so on.