Why does calling suck? We have a 5:1 chance of hitting the turn or something like that, right? Are we getting the right price? No. So if we hit the turn, we need to get a little more off him to justify the call. His range is wide as fuck. We call on this flop. What's he gonna do when the diamond comes on the turn and he has jack high? He's gonna shut down. So we're going to find it tough to make money off him on the turn when we make the flush.
If we raise, we put pressure on all his king high and queen high crap that currently we lose to, we might even get him to fold a pair, and when he continues we still have equity.

I realise you're far superior to me when it comes to poker, but I think calling this flop is our weakest option. Please tell me why I'm wrong.