Yes
Are you saying that the orthodox who find themselves in the heat of spiritual battle with the Lord in an attempt to help guard God's children from the stealing of souls by satan and his minions from the Father are worse than heretics.
To the extent that they are in communion with them, yes. By being in a church or in communion with a church you are accepting its teachings or at least saying there is nothing there that is not compatible with Christianity.
If I am reading your post correctly, you should reevaluate your statement and look a the big picture here. We battle not against flesh and blood, but principalities. In other words, this is a spiritual battle.
The Big Picture is that ECUSA is institutionally apostate. They have repudiated or questioned almost every article of Christian Faith. When you are a member of ECUSA you are in communion with V. G. Robinson, Bp Spong, and Bp Griswold.. Would you join the Mormon Church to try to save it? Your position is simply contrary to the ancient canons and teachings of The Church.
This is not about homosexuality, nor is it about scriptural authority as much as it is about satan attempting to tear down what is rightfully God's from within, using the very persons that vowed to uphold scripture.
Satan has used those methods to break this denomination. The fight must continue, but from outside of it.
Look around, it's happening in just about EVERY mainline denomination.
Hmmm. Kinda makes you wonder about Protestantism in general. No?
"That one must not join in prayer with heretics or schismatics." Canon 33 of the Council of Laodicea.
"That one must not accept the blessings of heretics, which are rather misfortunes than blessings." Canon 32 of the Council of Laodicea.
St. Maximus the Confessor said: "Even if the whole universe holds communion with the [heretical] patriarch, I will not communicate with him. For I know from the writings of the holy Apostle Paul: the Holy Spirit declares that even the angels would be anathema if they should begin to preach another Gospel, introducing some new teaching." The Life of St. Maximus the Confessor.
"Chrysostomos loudly declares not only heretics, but also those who have communion with them, to be enemies of God." St. Theodore the Studite, Epistle of Abbot Theophilus.
"All the teachers of the Church, and all the Councils, and all the Divine Scriptures advise us to flee from the heterodox and separate from their communion." St. Mark of Ephesus.
St. John the Almsgiver said: "We shall not escape sharing in that punishment which, in the world to come, awaits heretics, if we defile Orthodoxy and the holy Faith by adulterous communion with heretics." The Life of St. John the Almsgiver.
"Some have suffered final shipwreck with regard to the faith. Others, though they have not drowned in their thoughts, are nevertheless perishing through communion with heresy." St. Theodore the Studite.