I recently had a conversation about opposing ideologies finding common ground and willing to view problems facing both sides. Unless we are willing to open our minds to problems facing both sides, then we can never find common ground. No matter if people are left or right, they are still citizens and the Constitution and all laws apply to them equally.
We can take this to an extreme and point to the Civil War. There were two differences of opinion and neither side could find common ground. Because the country had a weak leader who couldn't find a resolution to problems, he resorted to guns. Unless something changes, the USA is once more on that same course.
The USA has two major ideologies and both have been conditioned to hate one another. Most of the time, each side wants all or nothing, whether it's gay marriage or drug legalization. Let's take a moment and revisit history and see what happens when both sides become immovable objects that refuse to change.