I wouldn't stand in the way of a woman making this choice, but it is my right to be able to say that I don't agree with abortion (except under certain conditions) without having to be worried that my beliefs will affect my employment or my ability to look at things objectively in spite of my personal feelings.  
Should women who don't support abortion not be allowed to be judges?  What about men?
Not everyone who opposes abortion is a crazy zealot who protests and tries to block what is now a legal right. A lot of things that are, or are about to become legal have proponents and opponents. No one is likely to get barred from working at the LCBO if they are against legalized marijuana are they?