[Campion]

Uh, no. The helium is used to pressurize the fuel and oxidizer tanks because it's inert to both fuel and oxidizer.

Starliner burns monomethyl hydrazine and nitrogen tetroxide.

[ProtectOurFreedom]

But burning hydrazine contradicts the author’s statement “Helium is used in the spacecraft’s thruster systems to allow the thrusters to fire without being combustible or toxic.”