Ben: the tzedukim were the ones who davka put tefillin on their hands and between their eyes, following the pasuk literally. They also didn’t light fires before Shabbos, per chazal’s interpretation but instead were cold and hungry on Shabbos. Tis is rejecting the Torah she’be’al peh.
YCT graduates wear tefillin, follow hilchos Shabbos, and generally care about Halacha- that’s why they have a semicha program that involves intense study of Halacha.
Its not that they don’t like Torah, or want to undermine frumkeit. They are struggling with being frum in this modern world we live in. That’s perfectly fine. Their ‘halachic’ conclusions might not be right, but their intentions are good and they want to live as frum Jews- otherwise they’d discard it all.