I don't know anyone who agrees with abortion. I know lots of people, however, who agree with a woman's right to make decisions about her own body. Similarly, I don't know anybody who thinks it is a good thing to strap people to chairs and than inject lethal chemicals into them. There are, however, people who believe that society has a right, and need, to invoke significant punishments for certain crimes with the intent of deterring others from committing those crimes.
Neither of these issues are simple. Neither are black and white. Both involve complex and deep competing interests.
I abhor the idea of abortion. It is terrible and tragic. Yet, I completely agree with a woman's right to get an abortion because I think it is exceedingly important that that choice is entirely up to her and not up to a panel of kings and priests. Patriarchal and religious control of woman, sexuality, and people in general is a scourge that needs to be eradicated.
But I also tend to disagree with the death penalty. I don't think it is a good deterrent, there are far too many mistakes made, and ultimately it simply costs way too much money to carry out.
For me, abortion rights, are a strongly moral issue, whereas, the death penalty is more of a cost-benefit issue, but that's just me. Because they are complex, deep issues, it is entirely possible for people to be any combination of for or against.
A lot of people on these issues just completely ignore one side of the equation. That isn't very honest or helpful.