I value the NT. It's great! How much wisdom is there, I din't think anyone reading it honestly can deny that.
Sure, the NT has wisdom in it. Wisdom for Christians. Most of the parts that we would agree are wise teachings are those that have analogues taught in Jewish scriptures and sacred writings, either Tanach or Talmud or Midrash.
I think the usual form of Christian worship is usually tomato/tomahto to Judaism. This isn't some wild belief, but I know that some, (many?) Jews disagree with this.
Since the usual form of Christian worship involves referring to a tripartite God, one part of which is the human being Jesus; and in some cases such worship revolves around symbolically eating the body and blood of a human being who is called God, I would sincerely doubt that there are any significant number of Jews who would consider the differences between Christian and Jewish worship to be "tomato/tomahto."
I don't believe circumcision is necessary. This is a biggie traditionally, but even many Jews share this belief.
I do not believe it is in any way accurate to suggest that "many Jews" do not believe circumcision is necessary for Jews. All four of the major movements absolutely require circumcision of male infants and uncircumcised men who wish to convert to Judaism. And in my experience as a rabbi, circumcision is usually one of the very last aspects of Jewish practice to resist assimilation and secularization: Jews who observe no ritual commandments or study Torah or whatnot will still circumcise their sons, consistently.
Having taught aspects of the laws and traditions to mohalim (ritual circumcisers) in training, and having associated with a lot of people involved in
brit milah (ritual circumcision) in the non-Orthodox world, and having officiated at a number of
brit milah ceremonies, I can count on one hand the number of affiliated or in any way practicing Jews I have ever encountered who rejected circumcision as a fundamental requirement for Jewish males. In my experience, anti-circumcision positions amongst Jews are generally relegated to small fringe groups on the most secular, assimilated left edge of Judaism.
Judaism has it's own form of Baptism.
I assume you are referring to
mikveh. However, going to the
mikveh is very different than Christian baptism, and not only in that it involves full immersion while nude into "living" water (free flowing natural spring-fed water or rainwater or melted glacial water).
Baptism is a ritual wherein the water symbolically serves to represent the "acceptance" of Jesus and the "washing away" of Original Sin that comes with the salvation through Christ.
Mikveh is primarily about purification from ritual impurity, which has nothing to do with sin (much less Original Sin, which we don't believe in). It has nothing to do with salvation (a concept that is not present in Judaism).
The primary function of
mikveh is either to purify a woman's body of the ritual impurities acquired during menstruation or birth, or to prepare any Jew's body for the higher states of holiness required in going to the Temple (which is one reason why
mikveh has declined in use amongst non-Orthodox Jews). Spiritual purification, even though only symbolic, is low on the list of uses for
mikveh.
In addition to these things, you are leaving out some critical differences between Judaism and Christianity. Aside from the obvious theological differences between Christianity as a "complicated monotheism" and Judaism as a "pure monotheism," there are the matters of Christianity believing that Jesus has somehow absolved them of the need to follow the commandments in the Torah (except, somehow, for a random selection of those they have apparently decided he has not absolved them of the need to follow); of the difference between Christianity as a belief oriented religion and Judaism as an action oriented religion; of the difference between Christianity as centered around individual salvation and Judaism as centered around redemption for all within society; and various other key differences; Judaism is centered around the observance of the commandments and the interpretation of Torah using the focus and methodology of the Oral Torah as taught to us by the Rabbis of the Talmud, whereas Christianity does not acknowledge the Oral Torah, and rejects the authority of the Rabbis of the Talmud, instead teaching the centrality of Jesus, and the authority of his apostles, and those to whom they delegated authority in the church.
To suggest, as you seem to be doing, that there are blurry lines at best separating Judaism and Christianity, and that the differences between the two are in actuality trivial or able to be overlooked without damaging the integrity of Judaism (if not Christianity also) is simply incorrect. There is a considerable gulf of theology and practice separating the two religions: Christianity is incompatible with Judaism, and Judaism is incompatible with Christianity.