“For those of you who felt the need to knock the CJLS teshuvot, I would suggest you actually read them. Out of curiosity, why exactly would you say a woman can’t tie tzitzit knots?”
Read them?! The suggestion!
Women can’t tie tzizis knots because women are not supposed to participate is preparation for a mitzvos that they are not obligated in. Similarly, women cannot tie the knots for a lulav.
Now the question is why all this supposed “discrimination” against women that they aren’t obligated to fulfill the mitzvos of tzitzis, tefillin, torah learning etc.
The answer is simply that women have different roles than men, and require different mitzvos in order to come close to G-d. Women have the laws of ritual purity, and the mitzvah of challah, and the mitzvah of lighting candles for shabbos and festivals. Men have their mitzvos. Each mitzvah has a different affect on a person’s soul that changes the person, eventually transforming a person to greatness. Men and women are different creations, so they need different mitzvos to achieve greatness. Another answer is that the mitzvos of tefillin and tzitzis remind a person of G-d’s greatness, oneness, and rulership of the world. Women are naturally more spiritual and closer to G-d, so they don’t need these mitzvos. This is shown by the fact that adam was created from dust – a very physical thing, and given a breath of G-d in order to come alive. But Chava (eve) she was created from the side of Adam – a thing G-d made of dust that was elevated because it had the breath of G-d making it alive. Then Chava was given her own soul. Chava was created from 2 spiritual things, but Adam was only created from one.