> Suggest contrary to that is wrongthink and enough to have one ostracized not only from science, but also society as a whole.

There's many scientists who have published the "contrary". They were not ostracized from science or from society as a whole. These saw next to none negative impact to their position while they were alive. Other scientists have published rebuttals and later some of the originals articles have been retracted.

J. Philippe Rushton: 250 published articles, 6 books, the most famous university professor in Canada. Retractions of this work came 8 years after his death.

Arthur Jensen: Wrote a controversial paper in 1969. Ended up publishing 400 articles. Remained a professor for his full life.

Hans Eysenck: The most cited living psychologist in peer-reviewed scientific journal literature. It took more than 20 years before any of his papers were retracted.

There's a lot of published articles about the "contrary view" that you can read. You can also read the rebuttals by the current scientific consensus (cited above).

> The analogous claim would therefore be that “although height differences have a large hereditary component, it does not follow that disparities in height between families have a genetic basis.” This seems very clearly false to me.

But this is not an analogous claim since you're talking about disparities between families. The analogous claim would be: "although height differences have a large hereditary component, it does not follow that disparities in height between groups have a genetic basis".

A very simple example for height[1]: The Japanese grew 10 cm taller from mid-20th century to early 2000s. Originally people thought that the shortness of the Japanese was related to their genetics, but this rapid growth (which also correlates with their improved economy) suggests that the group difference between Japanese and other groups was not related to the genetic component of height variance.

[1]: Secular Changes in Relative Height of Children in Japan, South Korea and Taiwan: Is “Genetics” the Key Determinant? https://biomedgrid.com/pdf/AJBSR.MS.ID.000857.pdf

> A very simple example for height[1]: The Japanese grew 10 cm taller from mid-20th century to early 2000s. Originally people thought that the shortness of the Japanese was related to their genetics, but this rapid growth (which also correlates with their improved economy) suggests that the group difference between Japanese and other groups was not related to the genetic component of height variance.

Every group grew taller as they got richer, but Japanese people are still short even today when they are rich. So existence of other factors doesn't rule out the genetic factor.