Is MHFM part of the “Old Catholics” (Union of Utrecht)? No.

No, of course we’re not part of the “Old Catholic” sect.  The “Old Catholics” reject Papal Infallibility and the dogmatic decrees of Vatican I.  They are unfortunately heretics and schismatics.  We are Catholics and therefore accept the Papacy, Papal Infallibility, Vatican I, and all the true popes and dogmatic teachings of true popes throughout history.  Here are the strong words of Pope Pius IX about the “Old Catholics”:

Pope Pius IX, Graves ac diuturnae (#'s 1-4), March 23, 1875: "… the new heretics who call themselves 'Old Catholics'... these schismatics and heretics... their wicked sect... these sons of darkness... their wicked faction… this deplorable sect… This sect overthrows the foundations of the Catholic religion, shamelessly rejects the dogmatic definitions of the Ecumenical Vatican Council, and devotes itself to the ruin of souls in so many ways.  We have decreed and declared in Our letter of 21 November 1873 that those unfortunate men who belong to, adhere to, and support that sect should be considered as schismatics and separated from communion with the Church."

Pope Pius IX solemnly declared that Catholics must regard those as schismatics and separated from the Church who belong to, adhere to and support the sect of the “Old Catholics.”