I can't improve much on this:
For various reasons I've been rather uninterested in getting into the weeds of the Wright issue, though obviously it's the case that we've had decades of prominent and popular white conservative preachers blasting the evils of America and no one has much cared.
Aside from disparate treatment of left and right and black and white in our mainstream discourse, there's also a difference in the basic narrative provided. The narrative from the Right - and its representatives in the conservative religious community - is of an America which was once the garden of Eden, until its tragic fall at the hands of (feminists, liberals, civil rights movement, whatever), and they wish to bring the country back to its former state. Thus they can hate the America that is while dreaming of the perfect America that was. Thus there's no conflict between their unquestioned patriotism and their hatred of the country, as their patriotism is for the True America that was, not its current corrupted incarnation
While the mirror image rhetoric from the Left is about a country which was flawed, often tragically so, but which has the capacity for improvement. Be disgusted with the country as it was and is, while hoping for an evolution to a better country.