I think it's normal that there are always arguments at the viewing area. When I watch football at home with some of my friends there will definitely be arguments.
Actually, the debate is a form of validation to confirm each other's choices, because of course we have to believe in our choices when betting on football.
Because I think it's more fun to debate than to watch alone without friends. The possibility of changing choices could occur after a long debate.
that's what makes the game not boring. you have someone to talk to. but if you happen to be serious with the game because you are concentrating on your bets, some people want to be alone so they can focus on what they are thinking.
but talking to somebody may give you a different perspective that you haven't considered yet. so actually being around with others will give you some thought to think about.
These debates do not only occur when gambling, but for those who do not gamble when watching a match live, there will definitely be debates between spectators or fans and this is very normal. Especially for those who place bets, the atmosphere will definitely be much different from watching the match live at the stadium. So if asked why gamblers always argue when watching live football, there is no answer because it flows naturally. I myself don't like watching matches in stadiums, apart from being dissatisfied because my eyes are farsighted, I also don't like crowds, so I am more comfortable watching matches from home while betting. Winning or losing is no debate because there is no opponent to argue with.
that's what makes the game alive and interesting, isn't it? so long you know who you are betting or rooting for. without chaos inside the stadium from spectators means the game is not interesting.
and as you said, your the person who doesn't like crowds. so this goes to shows that this depends on the person, it is up to you how you will approach the game, and where feel you are more comfortable of.