I use a handful of JS libraries in my website because I need to add stuff like equations (MathJax) and syntax highlighting (prism.js). His premise is wrong beca

I use a handful of JS libraries in my website because I need to add stuff like equations (MathJax) and syntax highlighting (prism.js). His premise is wrong because he thinks sites only convey message using plain text and nothing else. Imagine how unreadable equations and code can be if they are presented as plain text.