Neoliberalism was popular like 40 years ago... the number of regulations and laws has greatly increased since Milton's time. It was never really tried.

Globalism replaced it and is now being dismantled as a failure. The USA withdraws from bretton woods and 'the west' is headed to a new economic theory. This started under obama and extended by everyone since. This does mean the USA won't be world police anymore and won't be involved in so many wars.

There are many hoping to be the replacement for globalism. Perhaps keynesian or neoclassical are what are perceived to be the current replacement, that's what is getting dismantled. What seems to be replacing it doesn't seem to have a name yet.

Probably going to be similar to laissez faire or austrian economics but I do expect a new name will be provided.