Upvote:-1
A way for a Catholic to think of how Biblical Unitarians (BUs) think of Jesus is that He is the King of the Saints in Heaven, firstborn in resurrection and first among those He himself calls 'friends', who plays a unique mediatory role between other humans and God.
Like Mary in Catholicism, Jesus is fully a human, and does not have a 'dual nature'.
Like Mary in Catholicism, Jesus did not pre-exist his conception.
Like Mary in Catholicism (dogma of the assumption of Mary), Jesus is a human who was taken up into Heaven.
Like Mary in Catholicism (dogma of the immaculate conception), Jesus had a unique conception vis a vis other humans which puts him into the position of fulfilling a unique role as ordained by God.
Like Mary in Catholicism (and the other saints, but Mary is often given a privileged role), Jesus can be 'prayed to', but again this must be qualified (in both cases, the primary function is that of an intercessor).
Like Mary in Catholicism, Jesus has a privileged relationship to God (unique Son of God, Mary is unique Mother of God).
Like Mary in Catholicism with special 'veneration' or devotion, there is an attitude towards Jesus which others might consider 'worship' and inappropriate towards anyone except God, and which is not equal to other humans in heaven.
Like Mary in Catholicism (although it seems a minority position), Jesus can be called 'divine' (although this can be controversial and also a minority position), but in either case the notion of 'divine but not co-equal to God' has to be defined.
So there are many similarities.
However, for BUs Jesus is the Christ, Son of God, and so is quite different from Mary because He is the Savior - through whom salvation comes - and the King, seated at the right hand of the Father - to whom all authority has been given by the Father. Catholics do not hold similar views re Mary.