Christ almighty, MM.
I don't know where you get your values from or if you might even know what a moral compass is, but DT certainly is not "he's a legitimate candidate in the American election"
As a reminder, he's a :
"Pussy grabber"
convicted criminal
carried out a sexual assault and has not paid the fine he received fro this from the court
incited a mob to insurrection at the home of American democracy
is on tape calling governors and election officials in various states trying to get them to "find" extra votes for him after the last election.
Regularly lies during interviews, debates and other public proclamations
Said covid could be cured by "bleach" and/or "shining a light on it"
The list goes on.
The creature is so far off being anywhere near legitimate.
Ronald Reagan, George Bush junior...perhaps even Richard Nixon. These are hard right member of the Republican Party of the US. They are legitimate candidates.
Trump is not a legitimate member of any democratic process anywhere in the democratic world.
I don't think this is a matter of opinion, this is a matter of definition.