I'm on my phone right now not on a computer so I'm not going to quote all of the verses that I would like to.
I'm not going to quote any verses at all.
how about the purification rituals of a woman menstrating and everything she touches becoming contaminated.
and how about the consequences of a person who doesn't rest on Sabbath or the law calling for the stoning of an adulterer?
no cutting off from the community those who drink blood or eat the fat of an animal?
Well, the purification of a niddah (as a rabbinic obligation) in the mikvah is actually something that every bride preparing for an Orthodox wedding learns. I learned it in high school because it was part of the curriculum (at an all boys school, no less). Other issues of tum'ah through contact are actually not in effect because we don't have the primary cleansing ritual of the parah adumah, so we are all tamei meit all the time anyway.
The consequences of any breaking of the laws would be, as I stated, enforced by a ritual court which we don't have in the absence of the temple and the theocratic country.
And the idea of "cutting off" is actually a state called "kareit" which a court would have to impose also. There are actually lower states of excision which still exist and are sometimes put in place, called "bans."
It seems that you have created a vision of what you think Judaism is, based just in written verses and your understanding of what they are and how they are incorporated into a complete system of living. That's an error on your part.