Of course people are free to join and go to whatever squad they want. But poaching and asking every member of our squad to leave and join you seems  dishonorable, dirty . 

Not disagreeing with you, being honorable is a characteristic not everyone has but also loyalty.....if a squad member is weak enough to take the offer do you really want him in your squad? Unloyal, weak...so maybe in the long run they're doing you a favor by getting rid of your unloyal members....just looking at the bright side of the situation.