That's absurd! Anyone who knows me knows I'm a pretty hard core Constitutionalist, but that's not the point here!
This is NOT a public stadium, or a public event. It is a PRIVATE event, and the operators of that event should have the right to take any security measures they need to ensure the safety of the fans. Period. If you don't like it, you don't buy a ticket.
There is NO Constitutional right to attend Tampa Bay Buccaneers games (which begs the question, "who would want to?" -- but I digress!