You're absolutely right but there is one important rule that come into play here, the higher you are the less knowledge you need to have to do something (due you have your "specialists" at hand).
The second fact is that trump made him to the winner of the elections, how?
He told his voters to vote in person and NOT to vote by postal voting. His intention was clear (voting in person is more secure), but he took thousands of fake votes off his own party (as we all know, even dead people receive postal vote-papers)!
This produced the fake looking Biden"-Win" which was caused by postal voters inducing THEIR fake-votes by already dead people.
What kind of fantasy world are you guys living in? Did you come up with this theory yourself or hear it on some right wing youtube channel?
Trump told his supporters to vote by mail many...many times. And his campaign literally spent millions on ads reminding people to request and return ballots by mail.
Some (not all) tweets
Read this:
https://time.com/5887438/trump-mail-in-voting/"... No one has done more to sow suspicion or spread lies than President Donald Trump, whose aggressive attacks on mail-in voting and false allegations of widespread voter fraud have capitalized on fear and uncertainty about holding a presidential election in the midst of the COVID-19 pandemic. On television, at rallies and on Twitter, Trump has falsely claimed that mail-in ballots “lead to massive corruption and fraud,” that foreign powers will “forge ballots” and that the “only way we’re going to lose this election is if the election is rigged.” He has falsely implied that ballots are being sent to undocumented immigrants in California and even suggested delaying the election, which he has no authority to do, until Americans can safely vote in person. ..."
So, I got my source, you got yours?