Watze expressed his dissatisfaction at Bayern's transfer policy, and claimed that it is turning the Bundesliga into a one-horse race.
"There is currently no other league that is dominated by one single club like Bayern in the Bundesliga. The situation is not like in the Spanish Liga, but is more like in the Scottish league," Watzke told reporters.
"Bayern are hitting back now [after Dortmund's two titles]. They want to destroy us to make sure we will never be a danger to them again.
"And they are doing so by signing our players.
"We don't stand a chance when our players can earn twice as much elsewhere. Despite everything, we will not change our strategy, though."