This thread is really interesting and I'm glad you started it fog.
I have to say I am really opposed to the idea of conscientious objection re: abortions. Even being involved in them. I think it enshrines in law an idea that abortions are potentially immoral. In a country where they are legal and every woman's right, I think that is wrong.
I also think it's hugely misleading to say that 'just as it is a woman's right to access abortion, so it is a MW's/ dr's right not to want to be involved'.
Well, no. Getting pregnant is kind of an occupational hazard of being a sexually active straight woman (well, for 99% of us, anyway!). Contraception can fail; a woman who has any kind of straight sex is probaby at some risk of getting pg.
It is not comparable to making a deliberate, considered choice to train as a HCP. If you train as a HCP in the UK and wish to work in the NHS, you know from day 1 that you are going to work for an organisation which provides abortion. You should sign up to that, or ship out.
And the woman's ethical scruples are not comparable to the HCP's. The woman is choosing to have an abortion done to herself. It is her choice. The HCPs are not being asked to get involved in any personal moral dilemma. They are being asked to assist someone else with an ethical choice which she has a right to make.
So I don't think it matters whether they agree with it. It is part of their job, I think they should be made to do it or they should not work for the NHS. I know that will seem extreme to some, but I think it is comparable to, say, a prison guard who didn't believe in capital punishment going to work in a gaol in Texas. You know what, it's part of what goes on, so if you don't like it, don't join up.