Why are Tennessee's suburbs still vote Republican

[Del Tachi]

But anyway, Tennessee's suburbs are much more White than the suburbs of Texas or Georgia.  I'm trying not to cherry-pick, but here are the 2020 racial demographics of select cities/suburbs in 2020:

Nashville - 53.3% White
Brentwood - 81.2% White
Franklin - 75.0% White
Murfreesboro - 62.1% White

Memphis - 23.9% White
Germantown - 82.3% White
Collierville - 67.2% White
Bartlett - 67.8% White

Atlanta - 38.5% White
Marietta - 42.0% White
Alpharetta - 55.4% White
Roswell - 63.3% White

Austin - 47.1% White
Round Rock - 46.9% White
Pflugerville - 40.1% White
Kyle - 40.2% White

You kinda have to consider Nashville separately since it's a combined city-county, so people trying to compare it directly to other cities (especially Memphis) are missing a lot.  Shelby County still has >200k more population than Davidson, and I'd argue Memphis still has the more "urban" feel on the ground despite increasingly playing second-fiddle to Nashville in the last 30 years.

[Del Tachi]

DeSoto County is interesting because it has million dollar McMansions for the Memphis white flight. But it has poor blank towns like Hornlake. I went to a mall in DeSoto County. Quite a cultural clash lol.

The dynamics of DeSoto suburbia are strange because, unlike Tennessee, Mississippi has a state income tax. I suspect the highest-earning Memphians would prefer to stay in TN, for this reason.   

If you work in Memphis but live in DeSoto, you wouldn't pay state income tax. You pay where you do the job.

This is a misconception.  If you are a resident of MS, you will pay MS income taxes.  If a resident of MS has taxes withheld in another state they will get that back on their MS taxes in the form of a credit, but since TN doesn't have income tax that doesn't diminish their tax liability in MS.   

[Pres Mike]

But anyway, Tennessee's suburbs are much more White than the suburbs of Texas or Georgia.  I'm trying not to cherry-pick, but here are the 2020 racial demographics of select cities/suburbs in 2020:

Thank you for the data!