It's s statement of fact, and a trait I encounter all the time. From you, and from plenty of other fans. You can't stand to see them look bad or be criticized and feel a compulsion to rush to the rescue and justify every move they do or do not make.
"must have" was never said, missed opportunity was, especially based on what this team has, and what it's paying for lesser play. And what other teams do doesn't justify the Cowboys making a mistake.
Nobody is saying "all", don't create a Strawman trying to argue something nobody asked for to again justify this blunder.
No, it's not a statement of fact, it's weak rhetoric without foundation. I admittedly think some fans go overboard and unreasonable with criticisms, but I also think Jerry is a poor GM, and have advocated for Garrett to be replaced for a couple of years. Acordingly its nonsense to suggest I am intolerant of criticism of the team, I just expect the criticism to be fair and reasonable rather than treating every step and breath they take as a screw up.
I can respect your desire to have McCoy, and I honestly liked the idea too, but the team already has a crowded interior D-line, and they have several high dollar contracts that need to be extended, so I don't see that passing on McCoy was unreasonable.
I didn't say you said "all" - that's a made up argument. What I said was lots of fans feel the same about players as you do about McCoy, and my point was that obviously not everyone who feels about a player the way you do about McCoy can be right. The team can't pursue everyone a fan thinks they should.