I re-watched it recently. So many plot holes and I have questions on some things

Overall I like it. Because I love all sci fi movies and there are not that many. But still. Lets nitpick because its fun. The more you think on it - the more plot holes you see.

1. The whole "Evil Powerful Rainmaker " is just a MacGuffin to get plot going. Movie portrays him as some Kylo Ren powerful creature that must be killed or else. But in reality he is just the boss of mafia that replaced other bosses. And Old Joe only wants him dead to save his dead wife who was accidentally shot. Otherwise future where Old Joe lived is fine and Old Joe lived happy peaceful life with his wife.

2. "Bodies cant be disposed in the future" makes no sense. What did they do with body of wife of Old Joe then? Its another MacGuffin to set the movie premise. Not only bad guys killed her but they kidnapped Old Joe and set his house on fire in the daylight with all cameras and witnesses to see.

3. Why every Looper had his victims to come from future in different places? Joe’s were coming in the open field near the freaking road. Gun shot would be heard and there were people who would work on those fields you know. He would be seen eventually. And then he took body in his car. He could be stopped by police for check and be caught.

4. Joe knew that Old Joe will come on farm and they all just sit there for days waiting instead if running?

5. Movie should have spend more time on telling who Rainmaker was and why was he so dangerous that future people wanted "John Connor" him. Remember that someone gave Old Joe coordinates to find young Rainmaker. Which is another plot hole since how could that person know that Old Joe will travel to past to do that? Even Joe didnt know it and did that only because he wife was accidentally killed.

Which leads to another plot hole. Old Joe knew that his time is up and his old bosses will come any day now to close his loop because 30 years approached. Which would put his wife in danger. Instead of leaving her to save her life - he just stayed there until the last moment. He could even tell truth to her that bad guys are after him and he should vanish to have her safe. But he was too selfish I guess.

6. How did Firm knew when Loopers didnt finish their loop and didnt kill older versions? Bad guys knew it immediately. Didnt Loopers throw bodies in fire? Like Seth and Joe could just go and kill random person on street and say that this is the body from the future. No one knew how whose victims looked anyway. But Seth was hunted like the moment he let his old self go.
Another MacGuffin for plot to get going.

7. Such attention to Kid Blue made no sense. He was not young Abe like movie tried to make us wonder. Because old Abe was wise and solid. While Kid Blue is an immature clown. And Abe would not send his younger self to go to dangerous missions where he could get killed.

8. Why did Jesse (Garret Dillahunt )came to farm of Mother and Cid? How did he knew where to come? Was Firm randomly checking all houses in that town?

9. Movie was setting Joe as our beloved protagonist who we should root for. But in reality he was killing innocent people, probably hundreds. Because all those enemies of mafia of the future that Joe got to kill - there were not criminals. Most of them had to be cops, prosecutors, law people, journalists who were in the way of mafia.

10. Why wait for 30 years to kill your contract killers? Its stupid. They would be killed the moment they were no longer working for Abe. No mafia would let them have their happy ever after for 30 years.