American politics is upside down and confusing.
Take the word "Liberal". Liberalism originated from the economist and philosopher Adam Smith. In short, it is based on the idea that every man should be given the same rights and freedom. The government guarantees those basic right by a justice system and then it is up to each and everyone to create their own future.
Liberalism was first and foremost an economical theory and this is often called Capitalism. However, you could expand the ideas into other areas of life and society. Liberalism would guarantee the same rights for someone who choses to live in a family, to live alone or, God forbid, to chose a different lifestyle.
The closest to a Liberal, in the original sense, in US, would be a Libertarian.
Anyways, get back to the God forbid part, in comes Conservatism. Take the economical part of Liberal (Capitalism) and combine it with stronger institutions, both government institution (justice, military) as well as social institutions such as marriage or certain ways to let elites stay elites. The idea was to slow down change and to remove radicalism and thus create stability that would make the economy thrive.
Around the same time, this guy Marx was looking at Capitalism from a different perspective. His idea was that everybody should own everything. The problem with this theory was that everybody turned out to be a few forming an elite and that everything was a much smaller pie than that Capitalism could create. Marxism or Socialism turned out to just not work.
In democratically countries in Europe, a middle road was established. It was called the Third Way or Social Democracy (which idiots in US now calls democratic socialism which is an oxymoron). The Third Way is completely accepting that Capitalism is the most efficient way to organize the economy. However, it is possible to take a slice of the pie and distribute it to the workers. As the economy growths, a certain percentage of this can be taxed and used for things such as schools, health care or even redistribution of wealth.
Almost every country in the world is somewhere in the Third Way scale between Capitalism and Socialism. The political fight is if you should move right or left on this scale.
In an International perspective, Joe Biden is to the right of the center of this scale. So was Obama, Bill Clinton, Jimmy Carter. Reagan was even further to the right and the Bushes followed in his tradition.
Where was Trump on the scale? He was all over the place. He seems to have no political conviction other than staying In power.
The tax reform and deregulation has nothing to do with Trump. He just signed the bills with his marker.
The policies that Trump tried to enact, such as the wall on the border to Mexico and the trade wars were just incompetent failures.
What the hell is the basis of his following?