>> setting text size in pixels instead of points

> "px" in css doesn't correspond to literal pixels on the display.

You ”justified” (I don’t know the intent of your comment, really) the use of points because pixels don’t match physical pixels.

> The comment you're replying to is my comment arguing against using "pixels instead of points".

Are you really arguing that using points is better than pixels on the web? Now that’s a brand new opinion.

1 point is always 1.33px. You’re still using pixels but indirectly.

I've not studied the topic in any depth, but I believe that an adaptive ruleset would just use CSS media queries (use this font size when viewport width is more than something). That is what Bootstrap does. Or, use viewport-relative units like vw, vh, vmin, vmax, but I doubt that would work well.