Mdd, the poskim are clear that one who is not aware of the existence of a mitzvah or who denies its origin as a commandment from Hashem has accomplished nothing; his brochos are levatalah, his actions are maysoh kof b’alma..
That’s what i meant by “not knowing aleph bais” – not literal aleph vais, im talking about people who are not aware of or who do not believe in the Mitzvah of tefilin. They are accomplishing nothing and their status of karkafta delo manach – if they’re included… they’re tinokos shenishbu – is unchanged.