Not really. We still believe in market regulation like any sane approach to market does. Well functioning markets are made, they don't just emerge if you remove regulation (except when conditions are just right by accident). Liberaltarian approach is ideological approach to markets that ignores all research into markets.
Example: there were no laws preventing diluting stock during a hostile takeover until after Vanderbilt tried buying out the Erie Railroad and diluting stock was a way to swindle him [1]
[1] https://en.m.wikipedia.org/wiki/Erie_War#Watered-down_stocks
They react to different types things. Both types are important, which is why we need markets as well as some amount of regulation.
Stuff like truly extensive regulation or outright central planning is nowadays relegated to narrow settings where market entry is considered infeasible and a "natural monopoly" cannot be avoided, so there is a real need to "carve out" the portions where competition is not feasible and apply strict regulations to those. That mostly applies to public utilities and a few large businesses like airlines, etc. Internet-provided social platforms may be in the same boat.