Thing is, this is so totally contrary to the overwhelming mountain of evidence of how IRCC otherwise deals with applicants, it is impossible to know what the actual situation is, let alone why.
The odds are very, very high there is another side to the story.
In general, while there are occasional instances in which unacceptable discrimination or bias inappropriately affects the processing and even outcome in an individual case, what really is obvious is that this is highly unusual, probably rare or even extremely rare. The majority of actions taken in processing an application are FACT-BASED, CRITERIA-DRIVEN, done by stranger-bureaucrats with large workloads operating under pressing timelines, with a focus on details of the case for which most prohibited-discrimination elements are neither relevant nor readily apparent, at least not beyond very broad categories (like the applicant's home nationality) which, if a processing agent is exercising discrimination in regards to that would quickly be noticed and would have an impact on scores of applicants, a phenomena which is simply not seen and most likely is NOT happening.
It should be remembered that apart from the prohibited forms of discrimination, there are many, many legitimate and mandatory reasons to discriminate or at least escalate the level of scrutiny. Obviously, the process specifically discriminates on the basis of criminality, for example, and is required by law to so discriminate.
I am not commenting on the OP's situation. From the posts I cannot form an opinion about what is actually going on and thus I have no observations to make about it.
But again, the accusation that there is obvious targeting by bigots involved is CONTRARY to what we know about how IRCC handles the vast, vast majority of citizenship applicants.