"Our country was founded on the principle of free speech and open debate," the wrote. "These days, censorship and suppression are far too common, and you’re now part of the problem. You have that right, of course, but realize you’re antagonizing half of your customers. And Mark ... we’ve had enough. We’re tired of corporate big-shots looking down on our beliefs. Reverse this decision now and get out of politics, or we’re done with you forever."