so wait a minute.. are you against people making tzitzit for themselves in our time because that snail is extinct or do you disagree with that rabbi teaching people in the former manner??
btw tzitzit is only commanded for clothes with angles and most modern clothes don't have this so tzitzit is not commanded for people (like me) who wear modern clothing....
The Talmud clearly states that the tekheles threads were made from a snail. The dye was taken from a live snail, and it is only a dead unclean animal which is unclean. Some Messianics argue that any blue will do for the "tekheles", but "tekheles" is used to refer to the dye, not the colour. In the absence of true tekheles, most orthodox simply omit this part of the mitz'vah. The talmud (to my knowlege) does not say that we can't use another colour, but it does say that we cannot mimic tekheles.
Lets get this straight, the Kaarites reject Yeshua as well, and the Christians reject Torah.
Now the word TECHLET in Hebrew indicates a unique dye, in fact while working on the lost Hebrew text of 1Maccabees yesterday, I found it in a list of precious dyes.
When Judas returned to spoil the tents ,
where they got much gold,
and silver, and blue silk,
and purple of the sea
and great riches.(1Macc. 4:23 Greek)
And Judas returned to the camp to plunder it
and they took much gold
and silver and TECHLET
and ARGAMAN and TOLAAT SH’NI
and great riches.
(1Macc. 4:23 from Hebrew)
Here we have one of many pieces of evidence for the originality of the Hebrew text of 1Maccabees over the Greek. The Greek omits ARGAMAN because it mistakes it for a transliteration of Greek ARGURION (silver) already in the list.
Lets look at the last three items in the list (after gold and silver):
TECHLET is according to Gesenisus’s Hebrew-Chaldee Lexicon to the Old Testament: “ a shell fish… a species… found in the Mediterranean Sea, with a blue shell, from which ‘cerulean purple’ [a bluish purple] is made… and garments died with this purple.
ARGAMAN is according to Gesenisus’s Hebrew-Chaldee Lexicon to the Old Testament: “Purple, reddish purple, a precious colour, obtained from some species of shell fish (Gr. PORFURA, Lat. Purpura), found on the shores of the Mediterranean Sea (1Macc. 4:23; Plin. N. H. ix. 60, seq.)….different from this is bluish purple TECHLET…
TOLAAH is according to Gesenisus’s Hebrew-Chaldee Lexicon to the Old Testament:
(1) a worm … (2) especially scarlet, scarlet colour, more fully TOLAAT SH’NI …
The Student’s Hebrew-Chaldee Dictionary from the Hebrew Publishing Company says under this second definition “2) the coccus-worm TOLAAT SH’NI coccus-crimson, worm-crimson.
From the context of the usage here in 1Macc. 4:23 these were three specific precious dyes each made from small invertebrates and considered precious like gold and silver.
Clearly TECHLET was not just "blue" or "blue cloth" but a specific and very precious bluish-purple dye comparable to ARGAMAN (a specific reddish purple dye made from shellfish) and TOLAAT SH'NI (a specific red dye made from a worm).