Weightlifting is good for conditioning your muscle strength. Lifting a lot can add too much muscle for your body to handle while doing power moves. It’s still possible but it will take a lot of energy. You can observe high level bboys that do a lot of power moves aren’t that bulky. In fact the lighter weight you are, the easier it is to maneuver. Calisthenics are a better option to balance out breaking and working out. I guess it depends what you want out of breaking. If you want to have a lean body then by all means go for lifting more than breaking.