"Would you prefer a screen separating the nave from the altar which bears only an icon of Christ?"
Ultimately by biggest complaint about the icons in question is when they are given such a prominent position, that they can compete with the Lord for attention. Such is the case of the saint icon outside one of the churches I go to.
This is probably not a proper spirit to display during Lent, so I ask your pardon in advance, but in addition to being nonsense, this misunderstanding of icons and their place in our faith is dangerous to your spiritual health. The inside of St. John the Wonderworker is literally crammed with icons (if I can say it that way) - none of which compete with the Lord for attention.
I beg to differ. The one right outside our church can be replaced by an icon of the Lord, his birth, preaching, crucifixion, or Resurrection. That would be much more Christo-centric and Christian. Yes this is a reason I am absent from that parish.
I can understand that an icon of our Lord would be more of an outreach to the heterodox who might be passing by--you would be saying that we are a Christian church, come and check us out. On the other hand, it seems to me that outreach can be handled in a variety of ways, only one of which is the sort of icon that is displayed outside the church. In my church, we have an icon of the Holy Apostles displayed--very logical as we are the Holy Apostles Orthodox Church. Thus, the icon of our patron saints helps to solidify our recognition by the community. Same perhaps with the Orthodox church on Cherokee Avenue, which claims that "Saint John the Wonderworker Parish is the first church in the world named after Saint John (Maximovitch) of Shanghai and San Francisco....Over the years the parish has been able to gather several items that this beloved saint wore, including a thigh shield and two of his robes. More recently the Church was given a bone relic from his foot, the only part of his body that was not found to be incorrupt." So, in this i9nstane, we have a church that has particularly strong devotion to her patron saint. This is quite normal and has happened many times and many places. I would think that the veneration of Saint John does not detract from the worship due our Lord. I do not think that what the parish intends. However, you may be more comfortable with another local Orthodox Church. I can only vouch for one--St. Mary of Egypt in Norcross; the rector, Father Peter Smith is a wonderful priest.
ADDED: I checked out St John the Wonderworker's web site. While what I saw is merely an impression, it seems to me that this parish is quite serious about her calling. Why, they even highlight of serving the poor and the hungry--folks who look poor and hungry to boot. I take back my recommendation to go visit St Mary of Egypt; stay and grow where you are as I don't think that you realize how blessed you are.