Look, I understand the emotional logic here, but you're basically arguing that paying for a ticket creates a relationship where you get to set behavioral standards for another adult. That's not how any of this works. You bought entertainment. Sometimes entertainment is disappointing. That's frustrating, and your anger about losing is legitimate. But anger at the *person* for not meeting your standards? That's where it gets slippery.
Here's what actually bothers me about this argument: it assumes athletes exist primarily as vehicles for your entertainment and emotional satisfaction. They don't. They're people who happen to have a job that's public-facing. Their job is to play well. If they don't, there are actual consequences - they don't get paid as much next year, they lose fans, they get traded, their reputation suffers. The system already has built-in accountability.
What you're really asking for is the right to be *righteously* angry at them. And you can be! Emotions don't need permission. But the idea that this anger is justified because you paid money and invested time? That's the soft entitlement you're actually describing, just aimed in a different direction. You've constructed a narrative where your emotional investment is labor that creates a debt. It doesn't. You enjoyed something, or you didn't. The player doesn't owe you emotional reciprocity for your fandom.