Because people do what you don't and find boring, you want them to be bullied ? Tanking is not only about getting a competitive team: I tank every season I am on hollidays because I want to enjoy my daughter and my family. I do not do that in order to win. I have twice won 3 trebles in a row and this has nothing to do with my tanking as my team is rebuildt every season. I tank to take a break from the game and come back more motivated. We are here on the brink of fascism with all these people complaining because others do what they find disgusting: live your life and let me live mine.
On the other hand, even if I am reluctant to compare this game to real football (because this is a game and it is everything you want but football): real teams DO tank. In France, several teams from league 2 avoid promotion on purpose because they cannot afford the invesment necessary to survive at higher level. And for them, it's definitely more clever to stay at their level than getting promoted and die 2 years afterwards.