Whether or not you agree, we should all pray for the unity that Christ desired.
I hold to the earthly physically split, spiritually united model. It’s as visible as any human beings are. I don’t like the term “invisible church” as it brings to mind chapels filled with the brethren of Casper the Friendly Ghost in invisible mode :-).
The church discipline commands of Christ are carried out in various ways among the actual denominations. They are not carried out perfectly, but our love isn’t perfect either. (”If you love Me you will keep My commandments.”)
I see absolutism being asserted in a domain where it is not applicable. The absolutism is in the destining power of Christ. In my honest/humble opinion.
And of course yes. Like the hymn goes, “We pray that all unity will one day be restored.” I believe the Evangelical model will embrace the other parts if there is not a cataclysm like a rapture first.