The choice to not supporting legislation that prohibits abortion is not the same thing as being pro-abortion.
Some people are too ignorant to notice the difference. Kinda like those that think just because some of us are against pre-emptive strike, that we are against war.
To me;
abortion is evil.
government is evil.
Evil+Evil, does not = Good
Anyone besides me remember the old wisdom of two wrongs not making a right?