Because people have free will,† and can choose to accept or ignore orthodox teaching.
This is especially true after Protestantism came about which caused a splintering into (tens of?) thousands of denominations,[1] rejecting even some tenets that were present since the beginning of Christianity (e.g., the Real Presence).
Whereas if you look at Catholicism (and Orthodox churches), they generally have consistent teachings going back to their beginning.
† Which of course some Christian denominations (and some modern materialists like Sapolsky) deny.
[1] https://en.wikipedia.org/wiki/List_of_Christian_denomination...
https://en.wikipedia.org/wiki/Sewing_machine
https://en.wikipedia.org/wiki/Loom
The problem with the term "hand-made" is how vague it is, you would not a call a car "hand made" even though most of the parts are put together by hand.
https://www.youtube.com/watch?v=cTZ3rJHHSik (Model T Ford Assembly Line) https://www.youtube.com/watch?v=MQPFVouph-w (honda factory tour) here are two car assembly lines 100 years apart notice how many people are still required to do final assembly.
Personally I think the sewing machine was a trickier problem than the weaving machine, We take them for granted today but it took 100 years and a real stroke of genius to figure out how to invert the process in order to make it simple enough for a machine to do it. while weaving has always utilized complex machines to make it possible.