Boston tea party

The establishment is constantly celebrating the last revolution while trying to kill the next one.

Excellent point.

because the "political" protests are not damaging government property, but private property of people not even related to the event.

The "tea," in the "Boston Tea Party," was owned by the British East India Company. They did not pass the tea tax being protested, King George's government did. They used to teach this stuff in school.

The tea did not belong to the government, nor was anyone forcing anyone to buy it.

Correct.

So the answer to the question in the original meme is "No, it is not ironic".

Come again?

OK.