Oh man, Redford now? Did these actors come from a time when broadcasting their politics wasn't viewed as wildly arrogant and inappropriate? Because that time is past.
If you're going to ignore that using your fame to make your personal opinions heard is unseemly, at least be persuasive. He gave no examples in support of his assertions. It read like an exercise in name calling.
Sadly, I can't stop these guys from doing this shit because I'm not a famous actor with an important opinion on things.