To not leave this comment with simply a hand-waving disregard of this post, let me say this: Nobody who knows what they are doing writes Tailwind styles as long as the ones presented in this post, nobody uses arbitrary styles or custom styles as many times as is presented in this post, and yes (in a shock to nobody)- it is quicker to write "m-2" than write ".[my unique, non conflicting class name (usually incredibly arbitrary to avoid conflicts)]{ margin: 10px };" and then implement that in code. Usually, when you try to write pure CSS efficiently, you just end up basically duplicating Tailwind by creating utility classes anyways, except minus all of the actual perks of JIT.
At this point in time, if you say that you see no benefit in using Tailwind, you are being obtuse.