While family medicine and internal medicine represent overlapping Venn diagrams, they have major and important differences. They need not merge. We should learn from each other, but continue to celebrate our differences.
Commenter 8 gets to the root of the problem:
It would be nice to nail down what the differences are between IM and FP so we all have the same expectations.
But our professional societies, at least on the IM side, have made little effort to do this.