Unless you live in one of the nine states in which employers are required to provide breaks, or otherwise governed by a provision requiring breaks (such as union or government employees), you may not have a legal remedy for this problem.
As mentioned above, most employers who give breaks to their employees do so voluntarily, and not because the law requires them to do so. This means they are allowed to place limitations on the breaks to maintain production or productivity standards, or for any other reason the employer considers important.
Employees who have difficulty with their employer's break policy may wish to contact their company's HR department and/or speak with an appropriate supervisor, to see whether the employer will consider implementing a more workable break policy that still allows employees to take breaks without abusing the system.