Arshak, your confusion as to Trinitarian men like John Calvin, Walter Martin, Adam Clarke ... is that they seemingly reject various aspects the doctrine of the eternal generation of the Son as in the Nicene creed "God from God" but do not reject the Eternal Sonship and/or the Eternal Logos.
This article is helpful in seeing the distinctions made by many Trinitarian theologians, some who accept eternal generation ... and some who find problems with how it is expressed in early creeds .... this does not make them "timid Oneness" ... this deals mainly with sub-ordinationism:
http://articulifidei.blogspot.com/20...on-of-son.html
What this proves is there is no uniform consensus ... among Trinitarians as there is not among Oneness ....