Do you think women should have to give informed consent for an episiotomy?
Of course. Its a medical procedure that carries risks.

Do you think that it is ok for HCPs to assume consent (for an episiotomy) if consent has been given for vacc or forceps?
No.

Do you think that it is ok for HCPs to assume consent (for an episiotomy) because a woman is in labour and has entered a hospital?
Absolutley not!

Do you think it is ok for a woman to refuse a procedure? When/Why? When is it not ok?
Yes. Its her body. Each procedure carries risks and its up to her to evaluate the risk vs benefit and give or refuse consent.