Two points - first of all, Casablanca is, in my opinion, the greatest movie yet created. Everything just comes together and gels perfectly. I don’t care that there are plot holes like why would anything like letters of transit even exist - it’s a movie, and sometimes you have to let go of reality a little.
Secondly, and more important than my thinking that Casablanca is such a fantastic movie is that in the second clip, it reminds us of what real patriotism looks like, not like the thinly disguised racism, anti-semitism, nationalistic and exclusionary hatred that we see today.