YOU SAID:

I don't understand why anyone wouldn't want to eat pizza

INTO JAPANESE

私は誰もピザを食べたくない理由を理解していない

BACK INTO ENGLISH

I do not understand why no one wants to eat pizza

INTO JAPANESE

私は誰もピザを食べたくない理由を理解していない

BACK INTO ENGLISH

I do not understand why no one wants to eat pizza