Bhutan officialy claims that the northern part of Doklam is within its territory, even if it is willing to let China have it as part of a diplomatic solution.
And Bhutan has consistently rejected China's request for a land swap involving South Doklam going to China. Both sides care about it the most because of its strategic significance.
Did you read the thread by Tenzing Lamsay?
Okay I get that proving this and showing evidence isn't easy and time consuming so will give you the benefit of the doubt and let's assume the first line is so.
Bhutan was in negotiation talks with China. The deal changes. If Bhutan rejects one offer, China could offer another. The breakdown of bilateral talks on this "swapping" only happened after India interjected and placed military presence in southern doklam where the road connect is required.
To avoid conflict, China simply connected the BRI route in another area. That's all there is to this correct? Do you think otherwise?
Now on the more relevant topic of whether or not China is justified in seeing this as Indian aggression and act against China's interests, it's necessary to know whether such a road connection is a threat to India.
You claimed earlier on that this road overlooks siliguri corridor snad so is a threat to India somehow. Can you explain this line of thinking? These roads a relatively small and designed for trucks and trade. In what capacity does this road have in threatening India's corridor? In today's age of modern warfare and an era where entire road stretches can be made useless by several bombs.