How long will it be until the US revises the Constitution?

The Constitution is full of crippling problems and is basically a steaming pile of dog shit for modern use. The composition of the legislature is probably the most egregious issue; the more populous your state is, the less your vote matters. The Senate was literally just a compromise between the relatively decent states in the north & the slavers in the south, and apparently we kinda just forgot to rectify it after the Civil War. Even the House of Representatives is biased towards small stated, and the combination gives small states a boost in the Presidency, too. Moreover, First Past the Post voting guarantees the formation of two political parties, which is bad for a variety of reasons which I'm sure you already know.

There's no protection from gerrymandering. The mandate of Congress is too narrow, to a point where the US is only even able to govern itself by abusing the shit out of the Commerce Clause. The 5th Amendment establishes a right to private property, which is universally interpreted to include land ownership. That's kinda horseshit because land is naturally occurring and limited in supply. All of the land anyone claims to own was, somewhere far back in the past, either stolen from its previous owners by force found uninhabited. In order to say that land ownership is morally justified, we'd have to either argue in favor of "finders keepers" or "might makes right," both of which are generally not accepted in modern times.

I could go on for a while, but yeah the Constitution is shit. Grind it up for compost and write a new one.