Pakistani JF-17s still use a Russian engine because Chinese engines suck.Over 200 Chinese version Su-27 are flying with WS-10 every day. Now they are being fitted into J-10, J-20. But, don't worry, they are not true. It is just a delusion of the whole world.
That is the spirit you will need.
Oh, yes, Americans are spending massive political resources to persuade and threaten her allies not to use this inferior product that no one wants to use.
And the same goes for all operational Chinese fighters. The first female J-10 pilot died a horrible death when her J-10 engine failed and she crashed and burned.
Many people who believe Chinese propaganda about PLAAF shiny toys will be shocked if they found out how crappy Chinese engine reliability is in reality. Even their maintenance of Russian engines is so poor that their J-10s fall out of the sky, due to which they had to cut flight training and replace it with simulator training. It's easy to fly your fighters for their propaganda photo sessions, or post their pictures sitting on the airfield (although many of those are decoys); much harder when you have to fly several sorties in wartime, with your engines failing due to poor reliability, poor maintenance and cold weather. Chinese fighters will crash left and right when they are forced to fly several sorties for long durations in wartime.
On top of the crappy quality of Chinese 5g, the big reason for everybody banning it is because the evil Chinese Communist Party government spies on all 5g users and steals their data for criminal activities.