Nor do they. You, however, seem to expect that Frei should have the ability to predict the future and thus anticipate which military commander would lead the ouster of Allende. The real point which you seek to obscure, of course, is not the military commander's name but rather the fact that Frei called on the military to oust Allende. Pinochet happened to be the commander of that military when it complied, and Frei, consistent and true to his previous word, supported him when it happened.
The point is you tried to say (your #231) that Frei believed that Pinochet intended to preserve the constitution before the coup. You have yet to offer any evidence for that. All you have are some vague anti-Allende statements that appeal to an army not yet commanded by Pinochet.
The real point which you seek to obscure, of course, is not the military commander's name but rather the fact that Frei called on the military to oust Allende. Pinochet happened to be the commander of that military when it complied, and Frei, consistent and true to his previous word, supported him when it happened.
Frei called for Allende's arrest, as you have often stated. There is no record of him supporting an extraconstitutional military junta, nor is there any record of him concluding that Augusto José Ramón Pinochet Ugarte intended to uphold the constitution.