Hashkafa is halakha? That’s convenient for people of your mindset. So anyone who disagrees with you is suddenly acting outside the bounds of what is acceptable.
The Talmud says that a man has to teach his son a trade. The Talmud is the only binding source of halakha we have, since we haven’t had a Beit Din haGadol since Ravina and Rav Ashi. So, you’re actually proving yourself wrong; if you disagree with hashkafic statements in the Gemara, according to your claim, then you’re acting unhalakhically.