America is polarized, because government has become big enough to be worth a prize fighting over.
There are only two ways to stop it, at this point, civil war or to shrink the government.
Truer words have never been said
There is a third way. Secession.
If everything is to be done at a national level, if the states are to be little more than administrative conveniences to the all powerful central government, then there is no room for compromise. Alabama is not free to be Alabama and Vermont is not free to be Vermont. Everything becomes a vicious all out war to see who gets control over the central government and thus who gets to impose his community values on the rest.
This was all set in train by Lincoln and the Radical Republicans in the mid 19th century. We’ve almost reached the end. We have very different communities in this country with entirely different histories and cultural values. If power is not decentralized, conflict - or separation - is inevitable.