ali's avoidance was probably a bit more honourable than trump's. he didn't go and get himself a sick note. he made a public stand and was prepared to go to prison for it.
tbf some of the things ali is recorded as saying at the time and about vietnam, show he had a great deal of wisdom and was well ahead of his time.
No question what Ali did was more honorable but the point is both he and Trump avoided going to the war and in hindsight they made the correct decision.
Ali was a black Muslim in 64 Trump was a rich white kid. Ali used his drafting to make a statement, Trump used his resources to stay home.
Both made the correct decision by avoiding the war.