My how my words can be twisted. Perhaps a more clearer explanation is in order.
Protestants, like the early church fathers, measure things according to what the scriptures specifically tells us. Thus we don't believe things like Mary was sinless, the Eucharist becomes the actual blood and body of Christ, or the pope is the direct decedent of Peter, among other things. It is because none of these are supported by the word of God. The early church fathers felt so strongly about the inerrancy of God's word that they separated the holy word of God from other writings. Hence we have the Bible today.
But people like to add to or ignore what is written by God. They like to argue about text, context and attack the word of God itself all in the order to boaster their argument. It's no different then the Pharisees who created their own traditions, Joseph Smith who claim to have additional sources other than the scriptures, or the Seventh Day Adventist who believe things were handed down to them. Our Lord Jesus often would tell those "learned" people that they did not know the scriptures.
Now those who hold such views are not following the total revelation of God through His word. They add to or delete from scripture. Protestants would considered this as holding heretical views. But, on some occasions, it is simply a misunderstanding of what scripture is teaching and Protestants can be equally guilty.
Now if someone knows they are in error and are willing to conform to the scriptures, then they have the opportunity to understand God more in instruction, reproof, and correction. If they refuse to ignore what the scripture teaches (like Jimmy Carter on homosexuality), then they are 1) off in la-la land, and/or 2) are not really a Christian. Christians are to try to bring them back to the scriptures but, if they refuse, we are to ignore them.
The only way to understand if you are holding heretic views is to understand the scriptures. Instead, many times some want to reduce theological understanding down to disingenuous arguments. They need to search their hearts for the heart is deceitful. But many times people don't, wanting to maintain their attitudes and arguments. That is really the sad point.
I hope this helps clarify the matter.
Really? Let's look at your words then:
“So I look at Luther and if I feel he was right on a matter, then I have to accept his view. If I feel that he has interpreted scripture incorrectly, then I need to make sure that I have my ducks in a row and correct his views as a brother.”
Feel. You chose the word, not me.
You also wrote: "My personal feeling is that we all hold heretical views."
Personal feeling.
Your words, not mine.