These messianic judaists vindicate the prudence of the Holy Fathers, who not only rejected the dogmatic dimension of Judaizing, but also (from a very early time - probably in the time of the Holy Apostles themselves if the witness of the Apostolic Fathers means anything) began censoring even the sentimental/secondary attachment to "judaic" rituals or customs, even if they allegedly were not being performed in a sectarian/heretical manner (with the attitude they were essential to salvation, or were anything other than cultural relics.)
The fact, is there is not a single Judaic feast, or ritual, which has not had it's emblematic significance fulfilled by the coming of our Lord Jesus Christ. Not only this, but there is not a single such rite or feast which has not be superceeded by an infinitely clearer/superior feast or rite...
- the circumcision which is according to the flesh, replaced by the circumcision of the soul consumated in Holy Baptism
- the endless MANY sacrifices of heffers and goats offered at the ONE Jerusalem Temple, superceeded by the ONE sacrifice of Golgotha, renewed at the MANY Orthodox Altars present wherever the faithful gather...
- The Passover from physical slavery superceeded by the Passover from death and spiritual slavery
- The Pentecost of the giving of the Law written on stone, superceeded by the Pentecost of the descent of the Holy Spirit Who writes the Law on men's hearts
At best, Judaizing externally is redundent and sentimental - at worst, it is a back door for sectarianism and pride.