Where can I read about objections to the validity of a question such as "the

Where can I read about objections to the validity of a question such as "the

Where can I read about objections to the validity of a question such as "the purpose of life" where the question baselessly presupposes that life HAS a purpose. And more broadly, even if it claimed that EVERYTHING has a purpose, how can such a claim be justified? It seems that many metaphysical questions suffer from this lack of validity due to unfounded presuppositions or assertions. Where can I read about this as applied to philosophical questions in general? Thank you.

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