It may be true that the Founders "could not have imagined women's suffrage". But, they realized that fact and included the ability to amend the Constitution for such situations.

I believe the majority opinion in Dobbs vs Jackson Women's Health Organization authored by Associate Justice Alito showed that the decisions in Roe vs Wade and, by association, Planned Parenthood vs Casey, were wrongly decided. To wit:

"For the first 185 years after the adoption of the Constitution, each State was permitted to address this issue in accordance with the views of its citizens. Then, in 1973, this Court decided Roe v. Wade. Even though the Constitution makes no mention of abortion, the Court held that it confers a broad right to obtain one. It did not claim that American law or the common law had ever recognized such a right, and its survey ranged from the constitutionally irrelevant (e.g., its discussion of abortion in antiquity) to the plainly incorrect (e.g., its assertion that abortion was probably never a crime under the common law). After cataloging a wealth of other information having no bearing on the meaning of the Constitution, the opinion concluded with a numbered set of rules much like those that might be found in a statute enacted by a legislature."

In other words, it wasn't because Associate Justice Alito "could not imagine any more rights… than the Bill of Rights ". It was because the Court deciding Roe departed from the traditional concepts of judicial review and issued a decision implementing a set of rules argued for by no party to the case and more in line with the role of the Legislative Branch.