Sure! The fertile ground is the large proportion of the electorate that feels cheated in some way. A big part of that is just what you are pointed to.

I see the weaknesses as largely matters of money and capitalist power inserting itself directly into The machinery of politics, arguably the biggest injury of all to the health of our democracy. The Citizen's United SCOTUS decision made that much worse. Religious faith also has been a prime weapon with which to dupe the public, confusing them about what constitutes basic facts or reality and pitching social policy issues always in terms of some automatic "Godly" side in saintly battle with Satanic forces. It is hard for people to exercise critical thinking skills when that shit is their paradigm.

The rest is fabricated by fascist tactics of manipulation, weaving false narratives to lead many to feel worse than they already deserve to feel.