Comment by Rheia on Zarathustra

@Rheia "his subordinates followed Ian because Jamie Lee is trying to harm him."
They discovered Jamie's plan now, that's why Chiwoon assigned protection, but in the first chapters we saw that Tj did it to keep tabs on what Ian was doing. We even saw Tj sitting in his car spying on him. If he had protection back then, they would have seen him meeting with the fake ID guy. 

"thanks to TJ’s influence no one in the gang touches Ian, although they consider him a traitor."
The only one that considers Ian a traitor is Yangji, we've seen how the other members (Jason, Chiwoon, Daniel, etc) not only respect Ian, they care about him. 

"The hired men were supposed to just restrain him, but a fight broke out"
Don't you think a guy like Ian would put up a fight? How do you think they were supposed to restrain him? 

"TJ's parents died in a car accident, so of course he was scared that his loved one could repeat their fate."
Ian had been riding as an amateur for quite some time but Tj only decided to stop him when Ian had the chance to LEAVE and become a pro. If he was afraid of Ian riding he wouldn't be building a garage for motorcycles in the new house. 

"Prison is obviously the only way to prevent a kind person like Ian from doing something to himself out of unbearable guilt." 
Tj never respected Ian's decision to leave the gang, he wants him back in, even though he saw how unbearable it was for him.

"We see that Tj does not restrict Ian's freedom and gives him easy work so that Ian has money to live on."
Hiring thugs to forcefully stop him from competing, sending him to prison, putting an enormous debt on him, etc, is restricting his freedom. 
Ian has no money to live on because he's killing himself to pay the debt Tj put on him.

@Rheia "it is logical that TJ wants to tie him to himself so that he has the opportunity to protect Ian."
The only reason Ian is in danger is because he's tied to Tj. Jamie is not interested in Ian, he wants to use him to get to Tj. And Ian isn't a princess that needs protection, he was a boss of a dangerous gang, a prodigy and when his subordinate tried to kill him we saw that he's more than capable of protecting himself. 

" If we talk about the situation with money, then nothing is known yet." 
Tj: he'll find it hard to survive on clean work, I'll tie him down with money. 
Jason: he'll kill himself trying to pay. 
Tj: I know, I'm just buying time. 
Tj thought Ian would break and come back to the gang, he's still expecting that. 

"The accusation that TJ has relationships with women is completely incomprehensible to me" 
(Jason: I heard you broke up with that woman.)
We also saw another woman leaving his hotel room smelling like him. 

Look, buddy, I could go on, but I can't explain everything to you. I strongly recommend you to reread wetsand so you can get a better understanding of the big picture.