What does the right & left have have in common today?

Maybe separating right/left ordinary people from right/left haters or politicians.  Right/left ordinary people believe the way they do because they view an issue from different perspectives, while right/left politicians and haters have an ulterior motive for espousing their view.

Seems to me real people want to reduce or end abortion, but their reasoning for wanting it are widely disparate.

Both sides view religion as useful, even desired, but will vary on how that might manifest itself in their lives.

We fought a civil war to prove that red states can't "secede" from the union, but there's been no war fought to preclude red states from kicking blue states out on their ass.

It's actually encouraging to see there's an acknowledgement that there's such a wide chasm that no longer provides a basis for staying together. And by the way, just because you separate, doesn't mean you can't reconcile down the road. Who knows, it might even make us stronger in the end if we can respect each other enough to celebrate our differences as we once did when making this nation. If we can't, that's OK too. We'll find some common reasons to stay friendly.

Absolutely, however we have heard both sides expressing a desire that abortions should be rare.  

People in this country have always had political differences, but they have always had more things in common than what divided them politically.  They believed in God and went to church.  They loved their country, with all its faults,and would die to defend it.  Families were a mom and a dad with their kids, and all the other  families on the block were the same.  Dad worked, mom kept the home running, and kids went to schools where they were taught the 3 R's.

All that has changed.  Religion, patriotism, the traditional nuclear family, and the roles of parents have all been attacked and undermined.  Schools have agendas that seek to indoctrinate children into a specific political and social point of view rather than educating them in skills they need to be productive adults.  Even the notion of what it means to be a man or a woman has been cast into doubt.  And it has all been done through personal attack and under the guise that if you don't believe in the new "order" you are a racist, a bigot and a bad person.  The commonality that used to unite us has been subverted to elevate the things that divide us.  If there's a road back from that which doesn't involve the complete subjugation of one side by the other, someone smarter than I am will have to articulate it.

Especially since there is little evidence that either side even WANTS to reunite.

It's likely that the only winners in a second American civil war would be China, Russia, Iran and North Korea. That's not a very appetizing scenario.

Your views about how it used to be are a fantasy right out of a script for "Leave It To Beaver".

We progressed, learned a few things and now we do things differently. We no longer let husbands beat their wives and call it a "family matter". We no longer let people drive without wearing a seat belt because too many people were dying. The role of parents wasn't "attacked and undermined" by anyone, people just decided they could live their lives under restrictions less severe and models which more closely aligned with their desires and goals. People are not forced to endure loveless marriages or abusive relationships as much as in the past and I think that's an improvement...don't you? Change is inevitable. Adaptation is not. You need to get better at adapting to the changes that will continue to come no matter how much you want to run away from them.

My grandfather was 13 years old when they invented the airplane and he lived to see men land on the moon. He was convinced that the rockets they sent up changed the weather for the worse. I loved my grandfather but don't think like him.

As far as evidence that we don't want to stay together, that evidence comes mostly from angry conservatives, not angry liberals. For the most part I think we're happy to stick around and try to educate some of those conservatives. Carry on.