It’s not laughable
Don’t underestimate the effect of not playing each other. When we first started playing Palace again after being in the wilderness it was pretty crazy, same when Rangers played Celtic again after being relegated down the leagues. The craziest auld firm ever.
Once you start...
Off the pitch, i'm going to guess that Southampton have the same sort of hoolie dynamic in their supporter base as us. No more than a dozen ageing meatheads with a deep voice and love/hate on the knuckles. They did probably once see a fight in the 70's but have spent the last 40 years in a pub...