@Aldo2 You missed the first word Jesus said in that phrase. "Father." It wasn't a call for people to go unpunished. It was a call for God The Father to still grant them salvation. Something that was only made possible by Jesus's sacrifice. This is solidified by Him saying "It is finished." Jesus even looked to the penitent thief and told him "Today you will be with me in Paradise." He said nothing to the unrepentant thief, who still needs to go through the repentance process even in death (made possible only by Jesus's sacrifice, again).

Forgiveness is dependent on repentance. We are commanded to give forgiveness to every man, insomuch that the man repents. It means that we are not to deny anybody the ability to repent.

Forgiveness without repentance is permission. In this hypothetical, forgiving Trump for raping your daughter should be something you should do as a Christian but only if the man faces the consequences and seeks retribution. I do not think that would mean still being the President and I think this person is absolutely delusional. I believe they are essentially pandering to their MAGA constituents instead of taking a principled stance. It's the same thing with the Christians who completely and blindly support Israel. I agree that it is likely this person would not grant the same forgiveness to a random street thug.