Do you think an infant knows right from wrong? I don't... and I work my way out from there, looking for that same innocence in others. As to your friend or anyone else, I can't answer for people I don't personally know... even when I do know people, I still can't always answer for them.
The way I see it, the only truly innocent people are those who sincerely do not know right from wrong, and they're mostly children. The rest of us are each and all responsible for our choices and actions.
When I was younger, I would have argued till I was blue in the face. I've since learned to choose my battles and not waste my time and energy on battles I know I can't win... so I'd leave it alone as much as they allowed it, and eventually refuse to discuss it at all if needed.
If things keep going the way they have been, they might regret not speaking up while they were still able/allowed to. Seems some things are just too big for some people to deal with, till it smacks them in the face one day and they have no choice anymore.
In line with what you're saying, I've been thinking that as fixated as we all are on Trump right now (and naturally so), whoever comes after him might be even worse.
All thanks to the greatest, brightest, most powerful, best at everything nation in the world🤪