These governments have adopted policies to reduce foreign cultural intrusion. Liberty is not won or lost in big battles, but in minor skirmishes, a little at a time. Cultures have always had foreign influences, from Christianity to Marx. Keeping them isolated is great for the tourist, but lousy for the people living there. If you believe in democracy, then you must trust the people to make the right choices., whether it is presidents or TV programmes - even if they sometimes vote for Ronald Reagan.
Any alternative is infinitely worse.