If "capitalism" can't survive reasonable consumer protection then perhaps it deserves to die, sure.
Option 1: the definition of "capitalism" requires that zero regulation be applied. In that case, abandon "capitalism" and replace it with whatever you'd call the same model but with regulation.
Option 2: a significant amount of regulation actually is enough alone to fatally destabilize capitalism. I do not believe this to be the case, but if it were, then it should very likely be abandoned, but it's difficult to know how other options might behave in this hypothetical universe.
If that is not the assumption then we can just make arbitrary claims about anything and calculate "drift"
Definitions have an inherently arbitrary component, sure. But stable, precise definitions are far easier to reason with than a shifting definition like "whatever the US is doing right now".