This is a bizarrely specific conspiracy theory (and seems to be designed for maximum divide & conquer of voting populations) which I've never heard of. What exactly led to its inception? I always enjoy engaging with conspiracy theories, as they are a great training regimen for keeping one's mind sharp and empirically grounded, but I don't even know where to start with this one!

>What exactly led to its inception?

From what I understand, people noticed the fact that whites were gradually becoming a smaller proportion of the population of Western nations, due to both lower fertility and increased immigration.

In addition to this, some migrant groups (notably Muslims from the middle-east) have higher-than-replacement fertility rates.

Extrapolating this out, the idea was that whites would eventually be "replaced" by Muslims and other "minority" groups over the course of many decades.

I don't quite know how the Jews got involved in the conspiracy, but I always found the accusation that they're trying to increase the population of Muslims to be a bit ridiculous.

notice that I did not say anything about races or religions or groups or anything, aside from, implicitly, "people who were already citizens of any given Western nation" and "people who are immigrating/migrating to said nation, en masse". my original post, untainted by your invocation of specific groups of people to brand my post as being an invocation of a specific—named even—"conspiracy theory" to be harmful to discourse, because once you have invoked that, not only is all further discussion is off the table, but now I'm now actively in a pickle here because I have to say something or else risk possibly being perceived as an anti-Semite when someone looks in my post history and sees your accusations not responded to by me. I don't know if that was your intent or not but I ask that you please be more sensitive to these things, especially when I'm posting here using my real name.