All I have done is express an opinion that ending abortion is best pursued by the process of amendment, and that I do not believe trying to do it by Executive Order will be successful.
Please explain to me and everyone else how that is a violation of the Ninth Amendment.
You've argued right along that because the Constitution doesn't specifically mention abortion, or the rights of the unborn (even though it actually does by the use of the word "posterity"), these biological persons (as you admit them to be) are not to be considered persons constitutionally.
But the Ninth Amendment expressly forbids that.
"The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people."
So, even if you choose to ignore all the stated purposes of the document. Even if you pretend that it doesn't specifically protect all individual human persons, without exception, you cannot legitimately argue from silence. The founders were careful to say that such an argument is not to be countenanced.
Because, they well understood the truth that Blackstone posited so well:
-- William Blackstone "Those rights, then, which God and nature have established, and are therefore called natural rights, such as life and liberty, need not the aid of human laws to be more effectually invested in every man than they are; neither do they receive any additional strength when declared by the municipal laws to be inviolate. On the contrary, no human legislature has power to abridge or destroy them, unless the owner shall himself commit some act that amounts to a forfeiture."