Its past, "have experienced" meaning they've already been through it
Answer:
"Americans born in this country, changed by ...has always been committed..."
Explanation:
The reason why this is a use of an emotional appeal is that it focuses on the pride that Americans have and the strong connection they have to their country. Another appeal to emotion would be, "...we are the heirs of that first revolution." a sense of strong American pride is shown here as well because of the emotional appeal of perseverance against the odds to fight for what you believe in.
Is there any way you can add the passage? i really want to help!