Indeed, when one side argues for dialogue, human rights, cooperation, peace and maybe a bit of socialism, and the other side argues for kicking immigrants, building an ethno-state where anything manufactured on foreign soil is heavily taxed, and the poor are left to starve to death, the middle ground really isn't the right answer. Middle grounds are rarely conducive to any intellectually honest discussion and this can clearly be seen in American politics: where the GOP has been sliding more and more into the right, the Democrats have followed, trying to capture the moderate Republicans that don't agree with the new "extreme" GOP.
Middle grounds are a slippery slope.