Your parents had CPS called on them because they needed to have CPS called on them. You didn't "do" anything besides telling the truth, and the therapist then responded. Your parents behavior is not normal. CPS may have resources that can help you AND them. One of the first things they do is try to see if there is a way to give the parents additional support to relieve stress/etc.

I was a mandated reporter and had to call on someone once. They actually helped the mom to find childcare so she could work, thus lowering the financial stress. Family breakup is usually a last resort.