This is basically the Patrick's Wallet Meme.

[Monoclonal antibodies don't work because they are antibodies from previous variants.] [Yup.]
[And the vaccine causes your body to produce spike protein from a previous variant.] [Yup.]
[So the antibodies your body creates as a reaction to the spike proteins shouldn't work either.] [Makes sense.]
[Then the vaccines don't work.] [Trust the science. Vaccines save lives.]