Commoner
Headache
We can measure the precise degree of molecular agitation within matter, as it's temperature. We cannot define when that matter becomes "hot" or "cold", however. In this way, temperature is both objective and subjective. It's also both actual and conceptual.
The agitation of molecules within matter is a real phenomenon regardless of it's "objectivity" or it's "subjectivity". But it's only "real" to us, however, as an experienced idea. If no humans existed, the molecules within matter would still agitate, but there would be no temperature. Because there'd be no hot or cold, and no scale to quantify the agitation within the molecules.
PureX, "hot" is not the same as "temperature". "hot" is subjective and does not even correspond directly to temperature, but to other factors like heat conduction, etc...
You are talking about two different things. Temperature is not "hot" and "cold".