That only holds true for beings that procreate. A human procreates with another human and begets a human. Father YHWH did NOT procreate with Miriam. His Holy Spirit power, IMHO, caused Miriam's egg to be fertilized by speaking into it the necessary DNA to create a human male child.
Also, "God" is not a "kind" (kind begets like kind). It is a title. The Father is a "Spirit" (John 4:24). If your view is correct, He should have begotten another Spirit, but that was not the case. Also, if your view is correct, and He begot a flesh and blood man, then the Father should also be a flesh and blood man, but that is not the case either. Also, if your view is correct and the Father begot a 100% human and 100% God, then the Father should also be such, but that is not the case either. Yeshua is not some sort of half man, half God mongrel either. Yeshua is strictly 100% man in whom the fullness of the only true God dwelt in via His indwelling Holy Spirit. That same Holy Spirit indwells all believers, but that does not make us God. It makes God living in us. That is exactly the case with Yeshua;
2 Corinthians 5:19 To wit, that God was IN Messiah, reconciling the world unto Himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
This verse does not say God WAS Messiah or that God BECAME Messiah. God was living IN Messiah via the indwelling Holy Spirit.