In biblical tradition, Japheth is a character known as one of Noah's sons, and his descendants are often associated with Indo-European peoples, specifically those who settled in Europe and western Asia. The term "Japhetic races" has been used historically to refer to this group.

If you mean bastard, as in fatherless; then no... it is in the family language of the germanic - indoeuropean - japhetic trace of languages from the tower of babel.

But it is becoming a "bastard" language in the sense that surely a great number of more than half of the people who speak it speak it as a second language, mainly pressured by business, colonization and cultural pressure.

It is a scientific theory

heliocentric theory, the theory of evolution, relativity theory

Theory of law. Theory of the climate. Theory of lax. Theory of vandals. Newtons's theory of mass.