American leftists preach diversity but their real goal is uniformity under their vision and rules.
We started out with the secession concept, but on a grander scale.
The Founders "seceded" from the old country.
The entire USA was free.
For well over 200 years we remained free while most of the rest of the world was communist, socialist or tending socialist, run by dictators and tyrants of various sorts, or still in the tribal/mud-hut stage of development.
Now half of the US is infested with socialist/communist moochers who believe we, the other half, are their cattle - to be milked for their convenience.
If we now split into two, the socialist moocher half will spend their lives and treaure trying to infest and convert the remaining half that is free.
That's what shark-filled moats are for, silly. ;)