This is the point I have been making.
Abortion is a practice. It was preceded in the 1950s and 1960s by a key cultural shift among our elites toward Left-Modernism. As a practice, the legalization of abortion merely reflects a change in the law that brought our society into line with its new set of dominant values. The same was true of the demise of racial segregation, the postwar trend toward deracination and cosmopolitanism, the legalization of interracial marriage, the triumph of feminism and gay rights, the embrace of birth control, etc. All of these things are the same thing which is elites reordering a society in line with a new set of values.
There is a reason why all of these massive cultural shifts which broke with centuries of tradition all occurred around the same time....