You're hardly a typical Republican though. At least a third of the country already believes in this racist, nativist conspiracy theory -and many more are open to it.
To be fair it's been established that that poll talking about 1/3 of Americans supporting the Great Replacement was actually giving the Great Replacement a pretty broad definition. 1/3 are classified as believers in the Great Replacement, but posters from both parties agreed that you didn't necessarily need to be a Great Replacement believer to answer Yes to a lot of those questions. I'm sure we have a bunch of Great Replacement believers in this country, but thankfully, I think it's safe to say it's at least still below 1/3.