I think it is quite the opposite...This is what makes Trump a dangerous man for China to cross. Trump is someone who will eat the puxxy with both hands, and still screw China, because he doesn't care about public scandals (case in point: Stormy Daniels).
If Iran goes nuclear thanks to China, the US will throw its entire weight behind India re-taking PoK, because it would become not just US strategic interest, but also a matter of survival for Israel that China be severed from Pakistan.
The West never supports India wrt Pakistan because the day Pakistan falls, China and the West will need some other neighbour to balance India. The most qualified candidate will then be Iran, but arming Iran will go against Israel, so a big NO for USA. Hence, USA is hellbent on protecting Pakistan. All the West narrative is focused on making India relent on Jammu and Kashmir, so that China (and USA) contain India and Israel is secured as Iran will not have to be armed then.
But, China has no such qualms on arming Iran. With increasingly powerful China and India standing rock solid on Jammu and Kashmir, China will arm Iran as it sees Pakistan as a lost cause. The region will get murkier as USA will be forced to think out of the box as it will have 2 objectives: Protect Israel and Contain India....