Another thing about BRICS is that what they talk about is creating a multipolar world instead of the monopolar, what we have now. It isn't toppling the US, but elevating other powers next to it. Same with dollar, it's not axing the dollar but introducing an alternative currency next to it. They also don't seem to promise anything quick, as far as I can see they imagine the work done in decades.
The current buzz is because the summit. Soon it will be forgotten back on the shelf and will be taken out next year, when it'll be relevant again.
And there are all those faggots who live from this buzz, the media (both on big media and social, youtubers and such), and the masses of schizos with heightened emotions for whom everything happens immediately and hype shit up unnecessarily. Those who wish to see the US fall in any minute. Those who want to see the Democrats and Biden fail. This isn't happening.
Rome did not fall in one step, from one day another or even one year to the next. It was a long dying process it started before Diocletian and went on into the Middle Ages. We won't see the US crumble in any spectacular way, but we'll be able to observe the cracks and the plaster falling off, if we really pay mind - but there will be people who will wave it away, and they won't have a hard job doing it.