Your anecdotal examples are just that. Where I fail to see or understand the complains here is the painting of a picture in which you're alleging that Chinese people's lives in China are no better than what they were back in the colonial era, where Chinese folks are treated worse by their own government and foreigners were treated much better due to the imposition of the foreign powers who had set up shop in China. A ridiculous and thought provoking insult to the government and to the vast overwhelming people back in China that don't feel, see, or interpret the events you have provided as proof of the apparent discrimination by the Chinese from it's own government. It's like what you're suggesting is that what exactly? Dismantle the current government and replaced it with what? Western style democracy some loud but few passionate butthurt gang can run on this emotional charade platform that China ought to impose some kind of laws where Han Chinese reign Supreme and the rest of 56 ethnicities in China play supporting roles to make the Han majority feel good about itself?
And let the PLA interventionist policies kick in by going on expeditionary missions "punishing countries" that mistreated Chinese ethnic people but are nationalities of whatever X,Y,Z countries the supposed discriminations are happening? And for what exactly? To satisfy the emotional need for some kind of revenge and to show the world that what they have been fearing and dreading of China are actually true. And for once China needs to be checked if not outright splintered before it gets too strong? I don't know what song and dance some of the folks here are asking for.
Some of the complaints here are no different from the complaints I have heard from the white folks in Canada and especially in the U.S. where similar complaints have been alleged and made against their own government. In which they have expressed the sentiments that their "white ethic groups" are going through white genocide by being replaced systematically through mass immigration, by being replaced or denied the chance to attend their schools of choice because of quota a.k.a. affirmative action, by being denied well deserved promotions due to "diversity" meaning minorities (blacks, brown, women, Asians) get the spot. The majority of crimes and police killings are made against their group etc..and the government and parties on both sides have been bought and paid for them big bad "JEWS."
No laws, no government are perfect. They are only as good and responsive based on the quality or type of people that are in power. So if there's an existing and growing issues of perceived and worst of all real misapplication of laws against any regular Chinese that must be looked into seriously and if such allegations are found to be systemic then it must change and be rooted out. But if such issue exist based solely on one's perception (feelings and entitlement) and not on hard evidence, then the weight of the law must fall on the accuser equally harsh if not disproportionately harsher because such unfounded complaints do bring social disorder and disunity, a situation that must not be allowed to fester because it can and will lead to internal instability and chaos.