I just pulled together a few comparable "alpha" "guards", with the caveats that 1) Luka is big like a forward but is a guard, and 2) Trae isn't on here to skew the numbers (he is one of the few guys that popped into mind as meeting the criteria).
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As everyone knows, Trae is historically bad. But what's fascinating is your memory of Donovan. It's like the "alpha guard" union pulled him aside somewhere in season 2/3 and said "Hey Spider, stop working so hard on defense. You're making us look bad. Take a break once in a while."
Donovan was average before the end of season one and trending up...and then just stopped and is now down with Booker, Doncic, and Morant as "Bad" defenders. Nobody is down with Trae as "worse than the chair" defender.