If Jesus had been a fundamentalist, he would have insisted on every detail of the old religion, Judaism, and not founded his own Christianity.
Every male would have to circumcised at a week old.
Women would worship in a separate area from men, and certainly could not have been priests/rabbis.
Men would wear little hats indoors.
Women would not cut their hair, and married women would cover their hair in the presence of men who were not family.
Women would attend a ritual at the mikvah bath at the end of each period, to purify them from their ceremonial uncleanness (not just physical dirt)
Animals would be sacrificed because God rejoiced in the smell of their blood.
No-one would light a fire or travel on the sabbath.
No-one would eat pork chops or sausages, eat shellfish or fish without scales, or meat which had not been slaughtered in a precise way.
No-one would eat meat products and milk products at the same meal, or within set hours of each other.
No-one would wear clothes of mixed fibres.
These are rules set out in the Bible, or made and enforced by the religious authorities.