I think I have answered this many times so I don't even know if I can remember all the things I dislike about it but...
The flaws with soccer are in no particular order:
1. Lack of scoring, It's not like I don't enjoy a low scoring defensive battle in sports, but with soccer it's usually so low that luck plays too much a part of each game where a lucky bounce of the ball could decide the entire game. In American football some lucky occurrence happens and you’re only down one score with a chance to come back. In basketball if you totally blow it on a play it only cost you 4 points at the most. In hockey there is still a good chance to come back, the same with baseball.
2. Lack of physical contact, I don't like a sport where you’re penalized for barely breathing on an opponent. I thought basketball was bad but because of the lack of physical contact allowed soccer has developed the best floppers in the world. If it got any worse it would be like having a bunch of ballerinas out there with a ball...oh wait in that they have to tough and lift each other at least.
3. They go backwards almost as much as they go forward. I don't want to see something where they pass forward, then back, then back some more, then forward, then back, then the other team gets possession somehow and it all starts over again. I don't mind smart strategic movement in sports, but when it gets to be a glorified game of keep away for long stretches then it goes to far.
4. Ties, sports should do everything reasonable to eliminate ties that they can. I want to see a definite winner. Who wants to go out and watch something where you know you might be witness to the mighty 0-0 or 1-1 tie. Sure other sports have ties but they are more rare. In American football were lucky to get a couple ties in an entire decade of hundreds and hundreds of games. You can't tie at all in baseball and in it's over 130+ years of history I can only really think of 2 games where it happened, both infamous and one was an exhibition. Even hockey has taken steps to cut down on ties.
5. Because of the way the game is structured there is just too many times where teams will screw around for most of the game because it might benefit them, like scoring early and doing nothing but going on defense the rest of the game hoping it will hold up. I can't imagine teams in other sports getting away with that kind of mindset and having it work. There are times where teams will town it down in other sports but those are late in the game when they are way ahead and have dominated to that point. I can't imagine in American football going ahead by a touchdown or in basketball going up by ten points in the first quarter and just saying, "Well were going to basically not try to do anything but keep the other team from scoring the rest of the game".
6. The way the offsides rule is structured in soccer is dumb, as opposed to the way it works in hockey. Just another opportunity to have plays were people screw around, and maybe if they changed it scoring would go up.
7. The way the game is timed doesn’t make sense. The clock keeps going when it shouldn't, and even worse when extra time is added you don't even know when it's going to end. It would be like if we covered up the clocks here and didn't tell anybody even the teams how much time they had left just for fun.
8. To be honest soccer players run a lot and need a lot of endurance, and maybe need to aim good...and that's about it. They don't fit my ideal of what an athlete should be like. To me an ideal athlete needs to be an physical specimen. (outside of any mental aspects to the game) They need to have a great combination of strength, explosive strength, endurance, speed, explosive speed, pain tolerance, agility, dexterity, hand eye coordination, and resistance to injury. In other sports, sure there will be people that are out of shape and do well from time to time, or have some other shortcoming but they usually give up an advantage to people that are better conditioned all things being equal. Even a lot of people built for speed will still have a nice build, like NFL wide receivers. I hate to say this but in soccer too many people look like they have a physique of a 10-year-old girl. There are professional bowlers that look like they could break David Beckham. Maybe for marathon runners I could see it, but even a lot of long distance runners look better.
I just don't think people over here are accustomed to skinny people running around in circles for an hour and a half hoping to see them score a couple of times maybe.