zero people block JS: false

only one person blocks JS: false

therefore many block JS

"Many" is not synonymous with "multiple".

I would expect that the percentage of people who browse without javascript on is incredibly small. The absolute number might be largish, and I guess in that context is could be considered "many."

Still, the vast majority use javascript.

Haven't you studied cardinality? You don't have One to Multiple relationships, you have One to Many /s

Between zero or all, could be many or some.

Or perhaps "few".