In my group of friends, the majority of us are either Giants fans or gambling/fantasy mercenaries. Unlike baseball, where there are no crossover alliances, our group in football sways to where the money or the fun is. In baseball, you cannot root for the Mets AND the Yankees. It’s impossible, unnatural and irresponsible. My kids will not be given the option of which particular pinstripes they prefer.
Football however is a whole other beast.