I used to be all about staying until the end, even when things just don't seem to "work out". I always figured these kinds of arrogant people have this "right" to not tolerate a few mistakes being made (and that's still true to this day).... That was back in the pre-1000 hour days.
But I later realized that has become cases of (more often times than not) my team not playing well together to overcome the other team. If it's a simple case of us getting outplayed, then that's out of our control, whatever, no biggie. If it's a case of a teammate who's methodology who conflicts with yours (at least 4-5 times) bearing grave consequences, I leave. You can't spend the whole game explaining why you believe their way of playing is "wrong" or not playing with their teammate's interests in mind, because 1) a majority of players in this game take feedback extremely negatively, 2) the time and effort you spent typing can realistically only be done during replays, at which point, the matter you wanted to discuss has already been done and over with.
I've tried this. It never sinks into their head. Constructive feedback only works on the more matured players.
Most players have it in their minds that their way of playing and decision-making is never wrong, but a lot of this comes down to intent and whether those intentions are followed up or need adjustment to better fit the team. It's not a single formula you just do every time and expect success from. Some players know to move up to create a passing play, and those unfamiliar with where to be usually prevent the team from doing such. On the other hand, some other players are more experienced with certain scenarios that they instinctively know another teammate has a better angle to receive a pass rather than themselves, and therefore allow such a play to happen.
I get that when you play with strangers, you're going to have to learn to work with everyone and whatever strengths and weaknesses they have (against the current set of opponents). Execution mistakes I forgive 9 times out of 10. I have 1800 hours in the game and I still miss the ball and make bad shots all the time. However, poor decision making is not a problem of hitting the wrong keys or buttons at a bad time; it's a lack of fundamental understanding of how to play soccer purely from a defensive point-of-view, and utilizing your team to its fullest:
1) Having a lack of trust in your teammates drives me up the wall, because overriding your teammate's intentions is like disregarding their presence in the game. You turn a 3v3 game into a 2v3 (or god forbid a 1v3) just because you have no faith that your teammates can support you. What's the point of them even playing if you're literally going to snatch the ball off them when they totally have it under control? This doesn't target someone with significantly better ball control and dribbling skills than the rest of the team who doesn't let go of the ball often. This targets those who commit to a ball when their teammates can produce drastically better results if they committed to the ball instead, someone who seems to go for everything forcing their teammates to move back to cover them instead of the other way around.
2) #1 partly stems from this: Having a lack of awareness of where your teammates are. It is almost always the first thing new players completely overlook. You have to consider your teammate's field of vision with their ball cam on, what they see and what they don't see. Often times I see two people side by side going up to challenge an aerial, lose and get scored on an open net... and this was all because both players had each other in their blindspots. "I didn't know you were going up!" "Well I didn't know either! #$@^". I got into the habit of positioning myself (with the ball cam in mind) where I can see both my teammates almost all the time. Usually this means you're going to give yourself some distance between each other (and honestly you should if you want to maximize your team's ground coverage). I do this because when an opponent manages to get the ball around me, the ball cam follows it, and no surprise, another opponent dunks the ball behind you. Ball cam doesn't tell you who's around you, so from a defensive point-of-view if you can see both your teammates, you can also see their blindspots and cover what they may not see coming. By also following this method of positioning, you will naturally develop the cycle of rotating with your teammates. Maybe it's just me, but having this mindset came to me quite naturally after losing to AI many times when I was first starting off. Letting people score on an open net is a result of overlooking a fundamental part of playing the defender.
Getting the right rotations, such as finding a safe time to retreat for boost and to cover your teammate is as crucial as it is for the teammate following up to pick a safe time to move in. Following up is great for applying pressure, keeping possession of the ball and putting opponents out of play, but you also need to know to fall back to ensure your side of the field is guarded and has back up plans if the first challenger on your team fails. When you get this stuff down, you should find yourself being able to depend on your team to hold out while you refill boost, and knowing when you should let go of the ball for someone else to take over.
Being matched up with players who have similar mindsets or can adapt to yours (or vice-versa) are the games I stay for now. When plays happen and you guys work things out throughout the game, there's a great sense of accomplishment you get that you just won't get with someone who doesn't work with you.