Magnum, I also do not the appreciate the derogatory remarks that are sometimes made by others. However, unlike you, I detest Trump (while acknowledging that he did some good things as President) - even before he became President, but especially after he began campaigning for the Presidential election of 2016.To me the USA Senate should have convicted Trump of the impeachment charges of incitement and then voted to bar him from all future high office in the USA federal government. To me Trump is largely dishonorable but Joe Biden is honorable. To me Trump is predominantly a liar and Biden is predominately someone who says that which he considers to be true. To me The Truth and being truthful are extremely important and I abhor it when people and organizations lie to me.
Regarding Harris, when I saw her in the debates for the Democratic Party nomination for President I was impressed with a number of things she said. After it became apparent to me that Sanders would not win the nomination for President and that Warren would not become a VP nominee I then wanted Harris to become the Vice President of the USA. I was also very impressed by what Harris said in her Vice Presidential debate with Pence. That debate of hers showed me that she has a brilliant mind.
I am thoroughly convinced that Biden is truly committed to fighting climate change and that he cares greatly about protecting our planet from the harms of climate change. I believe that Sanders probably convinced Biden of what is needed to fight climate change. I see Biden as being far more in favor of science and of applying scientific knowledge than Trump, including when the scientific knowledge is discouraging (such as how serious Covid-19 is and what needs to be done to fight it). Biden is also getting tough on China, contrary to what Trump said would be the case. [See https://www.cnbc.com/2021/01/22/us-china-relations-bidens-team-talks-tough-on-china-.html and https://www.npr.org/2021/02/05/964581463/inside-the-biden-administrations-policy-on-china-and-taiwan .]