We told them in 1979 that they are under the bus and that hasn't changed. However it now looks like China is finding the Arabs to be a better friend to have than the Persians...and are actively throwing them under the bus...as mentioned before even the US isn't disputing their land rights.
The USA regime is actively supporting every terrorist, "ethno"-nationalist grouplet trying to separate land from Iran. So it's much worse in this regard than China, since unlike China it is actively working towards that end whereas China confined themselves to a statement.
Anyone saying China did worse than the USA in terms of threatening Iran's territorial integrity, has either been exposed to western-funded Persian language propaganda media for too long, or spoke emotively whilst forgetting Washington's sinister track record.
An Iranian newspaper just did that because of the Xi thing
Bringing Taiwan to the World and the World to Taiwan
www.taipeitimes.com
An Iranian newspaper on Saturday said that Taiwan has a “legal right” to independence, in an apparent reaction to China siding with the United Arab Emirates (UAE) in a diplomatic row over three islands in the Strait of Hormuz that Iran also claims.
The Arman Daily’s front page story, titled “Taiwan Independence: A Legal Right,” said Beijing would have to accept Taiwan’s independence despite attempts to suppress it by force.
Arman Daily is a reformist, western-absolving paper, belonging to the west's fifth column in Iran. It's therefore not representative of the current administration of Iran at all, nor of the revolutionary core of the Islamic Republic which includes the Leadership. On that very frontpage, the newspaper is explicitly taking aim at Iran's President Raisi, in what is actually its main bold headline.
Some are yet to learn that Iran is not only a democracy, but more pluralistic in character than western so-called democracies. There is no single governing party in Iran, two camps whose foreign policy outlook is as opposed as it could get, alternate in charge of the administration and parliament. One of them, the liberal camp composed of reformist and moderate parties, intends to put an end to the revolution and reinstate the geopolitical conditions that prevailed under the ousted, western vassal regime of the shah. They are efficiently held in check by the principlist / revolutionary faction though.
If it wasn't for the Islamic Republic, Iran would fully align on Washington against Beijing.
This being said, the joint statement between China and PGCC regimes remains unacceptable from an Iranian perspective. China crossed the lines of neutrality by endorsing standard anti-Iranian diplomatic rhetoric, the same rhetoric that the USA regime is using in international bodies against Iran - it's not simply about the three Iranian islands but includes mantras such as non-interference in neighbors' affairs, so-called "proxies", nuclear proliferation, ballistic missiles etc, all of which Iran is being implicitly accused of in the joint declaration.
Whatever China's calculations are, it seems to me they're way off on this one. That the Saudi regime is and will remain a compliant USA client and will therefore refrain from assisting China in any fashion in case of an escalation of tensions between Beijing and Washington in the South China Sea, the Chinese will discover when the time comes.
In the meantime, China is conducting business with India despite territorial disputes. China is conducting business with western countries despite their hosting of Uyghur separatist organizations, and in spite of American-Chinese strategic antagonism. Should China side with Iran's enemies in regional disputes, no need to get embroiled in rhetoric about Taiwan, there are other options which never discouraged China from conducting trade and investment with a nation. However I doubt it will be coming to this.
Another point Chinese users ought to pay attention to: Saudis are conducting outspoken anti-Chinese propaganda via the London-based, Persian-language satellite broadcaster they fund, the so-called "Iran International", which currently is the most watched oppositionist television media in Iran.
Some samples for our Chinese friends to meditate. This is how a Saudi-funded anti-Iran mouthpiece is talking about China behind its back:
UN Rapporteur Who Just Visited Iran Is In Cahoots With China - Watchdog
Friday, 05/20/2022
https://www.iranintl.com/en/202205204194
Digital Oppression - China’s Playbook For Iran
Saturday, 02/12/2022
China’s large-scale efforts to control the Internet has become a viable conceptual and technical model for authoritarian regimes, like Iran's Islamic Republic.
www.iranintl.com
The day Saudi Arabia shows signs of intending to ditch the USA for China on a matter of real strategic impact, its leadership will be removed in a matter of hours. The whole regime especially its security apparatus is infiltrated by the CIA, which propped it up in the first place, just like Iran used to be under the ousted Pahlavi monarchy.
The reason Washington is tolerating this ongoing, apparent rapprochement between Ryadh and Beijing, and utterly failing to discipline its ally or should we say vassal, is simple: to allow their Saudi clients to gain some leverage with China, leverage that the USA itself is bound to lack, and have them encourage Beijing to limit its ties with Iran.