What is your advice for one who focuses on teaching fiqh (Islamic jurisprudence), conduct, and morals, while neglecting tawhid (the oneness of Allah)?

Question:
This is a questioner from America. He says: In our country, America, there are students of knowledge who teach people and focus on fiqh (Islamic jurisprudence), conduct, and morals, while leaving out the teaching of tawhid (the oneness of Allah) and explaining shirk (associating partners with Allah). He asks: Is there any advice for us and for him regarding this?

Answer:
There are many groups among them that call to the noble of morals, to forbidding riba (usury or interest) and zina (unlawful sexual intercourse), and so on. As for shirk (associating partners with Allah), they do not confront it. They say, "People are free in their beliefs," or "Do not drive people away; leave them to their beliefs." This is a false and failed call, contrary to the call of the Messengers (peace and blessings be upon them). Every prophet said to his people, first of all: "O my people, worship Allah and do not associate anything with Him." They begin with tawhid (the oneness of Allah) and forbidding shirk (associating partners with Allah). As for you leaving the forbidding of shirk and leaving the enjoining of tawhid, and going instead to forbidding major sins, zina (unlawful sexual intercourse), and theft, this does not accomplish anything.
Without tawhid (the oneness of Allah), it does not accomplish anything. Even if one avoids riba (usury or interest), zina (unlawful sexual intercourse), theft, and drinking khamr (intoxicants), and avoids them, but he has shirk (associating partners with Allah), that will never benefit him. Yes.