Why is it ludicrous? Jesus is the Son of 'Man', then what is the name of the 'Man' who is the Son of God?
And it came to pass,
when men began to multiply on the face of the earth, and daughters were born unto them
Gen 6:1
Men began to multiply not angels that have no seed .The idea of spirit beings giving birth to the flesh only shows the spirit of the antichrist is working to spread his lying signs and wonders.
Men that have dna where created in the image of God with the ability to procreate. Angels were not created in the image of God. God did not say let us create angels in our image after our likeness.
Gen 1:27 So God created man (not angels) in his own image, in the image of God created he
him; “male and female” created he
them.
Sons of God pertaining to spirit being without any form and not made from the rudiments of this world cannot reproduce they have no seed.
And it came to pass, when
menbegan to multiply on the face of the earth, and daughters were born unto them, That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.And the LORD said, My spirit shall not always strive with man, for that healso is flesh: yet his days shall be an hundred and twenty years. Gen 6:1
That section is simply saying the sons of God where being unevenly yoked with unbelievers in jeopardy of missing the spiritual seed Christ by which all men (not angels) are born again from above.
Romans 1:3 Concerning his Son Jesus Christ our Lord, which was made of the s
eed of David
according to the flesh;
Angels have no flesh they are spirits and not subject to salvation. The spiritual seed Christ was preserved all the way up to the birth of the son of man Jesus.
John 3:6 That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
So if daughters were not born until 'men' began to multiply on the face the earth then the single progenitor seems to have a big hole in it such as the wife of Cain, but maybe walking by faith and not by sight would make it had to read the passage wherein it is written, if any of you lack wisdom, let him ask of God, that giveth to all men liberally, and upbraideth not; and it shall be given him.
Eve who was taken from man is the mother of all flesh. Cains wife one of her children.
Angel procreating with another kind make good Hollywood drama stories but are not a biblical teaching.