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This sentence is biologically incorrect on multiple levels:

1. Human red blood cells and blood-vessel cells are animal cells, which do not have cell walls. NCBI's The Cell: A Molecular Approach states that while bacteria, fungi, algae, and plants have cell walls, "Although not encased in cell walls, animal cells in tissues are closely associated with an extracellular matrix" and later reiterates "Although animal cells are not surrounded by cell walls".

2. Oxygen transport in blood is carried by hemoglobin inside red blood cells. NHLBI explains that red blood cells contain hemoglobin and that "Hemoglobin is an iron-rich protein that helps red blood cells carry oxygen from your lungs to the rest of your body." So the key structure for oxygen transport is hemoglobin, not a taurine-dependent "cell wall."

3. Taurine is not used as a protein building block for making cell walls. PubChem describes taurine as a nonprotein amino acid and says "Taurine is not incorporated into proteins"; it lists roles such as bile acid conjugation, osmoregulation, neuronal excitability, inflammatory reactions, and glucose metabolism. That directly conflicts with the claim that the body needs taurine to build the relevant structures for oxygen transport.

Taken together, the post's mechanism is wrong: human blood cells and blood vessels do not have cell walls, oxygen carriage depends mainly on hemoglobin, and taurine is not a structural amino acid used to build those supposed walls.

This parenthetical defines leukemia incorrectly.

According to the National Cancer Institute, leukemia is "Cancer that starts in blood-forming tissue, such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the bloodstream." By contrast, NCI defines a carcinoid tumor as "A slow-growing type of tumor usually found in the gastrointestinal system ... and sometimes in the lungs or other sites" and classifies carcinoid tumors as neuroendocrine tumors.

So describing leukemia as meaning that "your hematopoietic tissue is carcinoid" is medically wrong: leukemia is a blood-forming-tissue cancer, whereas carcinoid refers to a different category of tumor arising from neuroendocrine cells. If the author meant merely "cancerous," carcinoid is still the wrong term here because it names a specific tumor type, not a general synonym for malignant hematopoietic tissue.