And to put numbers to your points, London’s population density is 14,600 people per square mile, while urban Houston is only 3,340.

And if you want to talk about the broader metropolitan area, then London goes down to 3,900 people/sq. mi., which is close to Houston’s urban area. However, if we look at Houston’s equivalent to that the density drops to 862/sq mi.

Also, London’s metro is 3,236 square miles. Houston’s is 10,062.

Anyone who compares these as equivalent is disingenuous or ignorant (not necessarily maliciously so, but likely just unaware or oblivious to the massive sprawl that Texas cities have).