The article continues with this, though:
The authors of the Constitution, however, did have insight into the potential abuse of the office of President, and they inserted something called the Emoluments Clause into Section 9 of Article I. It states, in part, that “no Person holding any Office of Profit or Trust under them, shall, without the Consent of the Congress, accept of any present, Emolument, Office, or Title, of any kind whatever, from any King, Prince, or foreign State.”
No other advanced democracy would tolerate this of level of conflict of interest so openly. I don't think this is business as usual, however low your opinion of the Republican party may be. We are talking about Trump's children holding key political roles while running his empire.
Btw, if the electoral college wanted to choose someone else, who are their options? Does it have to be a presidential candidate or could they choose Pence (just curious, I appreciate it's the least likely of the possible outcomes).