Both parties are guilty of creating the difficulties our nation is now facing. Both exhibiting increasing authoritarian tendencies for decades, as predicted by modern day prophets since the 1960’s. Progressives like to point out examples of how winner-take-all politics push the U.S. further toward the authoritarian end of the spectrum, yet, in their own way, have become so disillusioned with "the system" that they too demand radical changes to civic institutions, which they view as tools of oppression. Like the right, they are willing to work around, alter or ignore those institutions to get what they want. This is our current dilemma.
The reasons for this threat are varied. For one, a rapidly
decreasing interest in mutually beneficial compromise, replaced by a desire on
both left and right to utterly defeat and dominate the other at any cost equals
an "us-vs-them" framing easily manipulated by aspiring
authoritarians.
Hyper-polarization destroys civility and paves the way for
authoritarianism. When Democrats and Republicans increasingly view the other as
not merely wrong but evil, both become willing to justify coercive and violent
behavior. Each side downplays their party’s willingness to subvert policies and
procedures that contribute to the common good, while vastly overestimating the
likelihood that their opponents would, and believes that if the other side acts
that way, they have no choice but to respond in kind.