That's actually inaccurate because a dead persons rights are preserved after they pass. For example we have a legal right to decide who our assets are given to when we are dead.
There are no dead persons. When a (live) person dies, all that remains is a corpse. The (live) person has a right to express his/her living will for what will happen to his/her corpse and assets after death, and others are supposed to carry out that living will. So what is preserved is the (live) person's rights.
The question of anortion is a matter of deciding at what point does the government begin to protect someone's right to life. Some believe it should be at conception while others believe it should not be until the umbilical cord is cut. Most people believe it's somewhere between the two extremes.
No, because no one has a right to life until they're born. The reason why is that, if you're living parasitically on the body of another, you don't have a life of your own. Rather, someone is giving you part of their own life until you are capable of having one. You don't have a right to the woman's life.
But it's been claimed that the state has an interest in protecting the future life as a child of the fetus, and people disagree on what point during the woman's pregnancy they can say the state interest can supercede the woman's basic personal rights to life, liberty, and property. The reason Roe v Wade said the state could assert such an interest at viability is between the extremes and at the point that, if a fetus is removed from the woman's body, it has a chance of having a life of its own.
The uproar over the SCOTUS ruling is pretty dumb imo. The only thing it changed was that the feds no longer decide where the line is drawn instead of the feds. It gives people more of a say in what the law should be.
This is not true. If the 14th Amendment applies to women as to men, they have rights as persons to life, liberty, and property as a unified package of rights, and no one can alienate them. If not, then any state can alienate any of a woman's rights.
In Idaho, after Dobbs, the legislature made an anti-abortion law without even an exception to save a woman's life. Dobbs almost came right out and said a woman wasn't a person if she was pregnant. It was an insult to human rights so great that I'm not sure the US can survive it. If I were a young woman, I'd plan on migrating and changing my citizenship if it's not fixed in the next couple of years.
This doesn't give people more of a say in what the law should be. It gives state legislatures more of a say. The majority of people in all but about one state (Mississippi) is pro-choice, even if they would like to choose an earlier point in pregnancy than viability for state regulation. No majority supports the more restrictive Republican positions of no exceptions, only an exception for the life of the woman, only exceptions for the woman's life/health and rape/incest, or only those exceptions and exceptions for serious fetal anomalies.
The only way people can have more of a say is if states offer referenda to assert state constitutional amendments about abortion to be voted on by all people in the state. When red Kansas did that, its voting result was blue.