As far as Satellite image show, there is no Indian structure across China's claim line though. There is something more going on.
The Chinese would not demand the Indians to destroy bunkers on undisputed Indian territory, nor would India agree to such demands if made.
Besides, note that I said infrastructure, not fortifications. You need infrastructure like roads and bridges to allow you to bring in material and equipment to build fortifications. That’s what China was worried Indian infrastructure building in disputed territory was building up towards, and why they were so firm to stop it.
They were originally just doing so via standard methods of building OPs to monitor Indian building activity and doing show the flag patrols, but once the Indians escalated things to overt violence with their ambush on the PLA communications officer sent in to speak to them, the gloves would have come off.
The timing of these latest Indian probes was also not accidental, as it was clear many in the Indian leadership was buying extremist fringe western propaganda about how badly China was supposed to have been hit by COVID19 with millions of deaths covered up.
As such a massively powerful, to the point of excessive, military show of force was seen as necessary in response.
Remember that China would have far better and more detailed intel on the motivations and beliefs of Indian leaders, and I think that if it is pretty clear to us that they are just desperately waiting for a moment of weakness and/or calamity on China’s part for them to launch an attack, then China’s leadership would also been well aware.
With Trump seeking to make waves in the east to distract from his own COVID19 calamity and to score points to boost his flagging election hopes, I think China also saw the dangers of those two sides launching a two front war against China, so China decided to show Indian leaders the size of the hammer it would drop on them if provoked sufficiently, hence the calling up of troops from Wuhan to show that the PLA is not affected even in China’s worst hit outbreak epicentre. That both dispelled Indian hopes of a PLA hollowed out by COVID19, while also showing them the world of pain they will bring down on their heads if they are stupid enough to press China too far.
Had the Indians blundered into a war with China, I think China would have gone to town especially hard on them.
Their own deservedness of such an almighty arse whooping aside, there would also be a massive element of kill the chicken to warn the monkey to it. Trump is a natural bully who will want to exploit anyone else’s weakness for personal gain, but is afraid of those who are willing and able to stand up for themselves. You can easily see this side of his character on full display with the contrasting ways he treats the enemies like Putin and Kim against Allies like Trudeau.
As such, Chinese goals in any war with India would actually primarily be to drop the hammer on India so hard that Trump tuck tail and runs in the East rather than piling in himself.
