The trouble with that Star Spangled Banner seems to be people trying to sing it in that over-inflated hyped-up way. At least every time I have come across it on the telly that has seemed to be the case. Sung straight and with a disregard for tearing emotions out of the lines, and I can't see why it's really any harder than the Marseilleise or the Soldiers Song.

Sing it as a folk song, which is what drinking songs are. A Rugby team in a pub wouldn't have any problems with it, if they'd ever had any reason to learn it. They play Rugby in Canada. (They had a team in the Rugby Union World Cup). They could send a team down and show them how it should be sung. (As well as demonstrating a rather better version of football. But maybe saying that counts as trolling.)