You're critiquing other peoples fandom nad then you say something like that. Funny, seems at least one teams scouts, multiple analysts, and others all disagere with you. As an NFL Prospect it's more accurate to say that Sam is pretty average. Measurables aren't the only thing that make a prospect. There was enough on the field tape of Sam to make a majority of draft evaluators rate him around a 5th round grade, enough for the Rams scouts to think he was worth a 7th rounder, and reportedly enough to make scouts from 4 teams think he was worthy of a UDFA pickup.
He's not "bad" at football. He's not a stand out, he doesn't have a high cieling, and he only went from average to "good" college player this year which gives some pause. Thus a 7th round pick. But unless you're suggesting most UDFA or 7th rounders are "bad" at football I'd say your evaluation is off base.
With Erod questioning the other poster's football fandom I wonder if he'll say anything to these obviously uninformed comments.
Joe Jacoby, Arian Foster, London Fletcher, Wes Welker, Jeff Saturday, James Harrison, Antonio Gates, John Randle, and Bart Scott are a smattering of Undrafted Free Agents that have went on to be some of the best players in their positions if not the league.
Sometimes good players don't get drafted for a large variety of reasons. One of the best QB's of the past two decades was drafted in the 6th round (Brady), and another was undrafted (Kurt Warner).
There's no way of knowing or even suggesting he was drafted "only because he was gay". It's actually kind of ridiculous to suggest that an NFL team is going to use some of it's resources on someone simply to make some kind of social statement. It's far more reasonable to assume the Rams felt like he was worth a late round pick for potential depth. Which is in line with what scouts and analysts have suggested Sam was projected for, even prior to him coming out.