"Real law enforcement" is trained and sworn in. The TSA is not. Random people in the government can say whatever they want; they could also call mall cops "law enforcement" of a sort. The fact is that words mean things, and TSA "agents" are not sworn officers.
Law enforcement throughout the country has another problem: the drug war and the militarization of the police force.
My dispute was that it is "conservatives" pushing this crap and that is far from correct. It is big government types who are in both parties.