points of view
“” is a compound noun that refers to an opinion, attitude, or judgement.
Compound form their plural by adding “s” (or its variants) to the noun that changes in number.
In “point of view” , it is the word “point” that changes in number, not the word “view”.
Ex:
mother-in-law ====> mothers-in-law jack-in-the-box====> jacks-in-the-box heir apparent ====> heirs apparent