I'll let your responses dictate the answer.

>how do we evaluate players of all races whose physical
>attributes are the key to the success in their chosen
>profession?

Like with any other job...work history. This is what scouting is for, HS, College, Bowls, etc. Players have built a body of work which typically lends better to predicting future performance than poking and prodding a player pre-draft. And a one day account (when someone could just be having an off day or fight through an injury) isn't a great indicator either.

>>So you're saying, as long as YT Pee Poe are okay with
>>it...the comparison isn't valid?
>
>i wanted to know how you account for and see the rest of the
>league in relation to these ideas, should there be special
>circumstances for some players and not others?

If the rest of the league had the same historical/ancestral reference that the players who feel a way about the process does, then their feelings can be validated alongside those that feel this way.

Anecdotally, the NFL itself has always played friendly with racist practices. The NFL Combine didn't become a thing until 1982, coinciding with the very turn of the league from majority White to Majority Black. Hmmm...

The NFL also:
-Had quotas on how many black players could play on a team
-Restricted the positions they could play on a team to make them all compete for limited spots and minimized their opportunity to play
-Still discriminates against black quarterbacks, kickers, centers, coaches and owners
-JUST got found complicit in providing differing medical care, post-career, to former black players based on a ridiculous racial measure
-Reprimanded players about supporting a protest against social injustice...until the world watch George Floyd die during a pandemic and had to soften their stance.

So it's not like they would care that what they do is similar to slave auctions.

>my problem is with the conflation of the nfl to slavery, which
>players are forced to be there against their will without
>being paid a salary?
>
>which players are equating the nfl with slavery? you made
>those statements, i am seeking clarification

Parts of a thing don't have to equal all of a thing. If a portion of what the league does, resembles a portion of slavery...it doesn't mean that everything in the NFL is = to slavery.

And to finally drive the point home:
SOURCE: Rawick, George P., ed. The American Slave: A Composite Autobiography, 19 vols. Westport, CT: Greenwood Press, 1972–1979

"Them in back can't see, so the overseer drives the slaves out to the platform, and he tells the ages of the slaves and what they can do … and one of the bidders takes a pair of gloves and rubs his fingers over a man's teeth, and he says to the overseer, "You call this buck twenty years old? Why there's cut worms in his teeth. He's forty years old, if he's a day." So they knock this buck down for a thousand dollars. They calls the men "bucks" and the women "wenches" … At these slave auctions, the overseer yells, "Say, you bucks and wenches, get in your hole. Come out here." Then, he makes 'em hop, he makes 'em trot, he makes 'em jump. "How much," he yells, "for this buck? A thousand? Eleven hundred? Twelve hundred dollars?" Then the bidders makes offers accordin' to size and build."

NFL Combine events
Physical measurements | Height, weight, arm & hand length, body fat percentage.
40-yard dash | Splits are also recorded at 10 and 20 yards to measure acceleration.
Bench Press | 225-pound repetitions (QBs and WRs are exempt)
Vertical jump.
Broad jump.
20-yard shuttle.
Three-cone drill.
60-yard shuttle.

^^^Looks similar to me. And seeing as how professional 'white' athletes didn't need to do this combine pre-1982, one would wonder why it was necessary post-1982/what changed. Hmmm...