Short answer: No.
6000x4000 pixels is a 3:2 aspect ratio.
1920x1080 pixels is a 16:9 aspect ratio.
So the number of pixels from a typical 24 MP sensor used to produce an HD image are not all 24M of them. Even if the width is "uncropped", only 3375 of the 4000 horizontal lines are used. That's a total of 20.25 MP.
"Raw" vs. RGB
Let us say "Red" ("R"), "Green" ("G"), and "Blue" ("B") are the colors on which the filters in a Bayer mask are centered and most transmissive.
Let us label the frequencies of light used in RGB color reproduction systems as R, G, and B.
Raw image data is monochrome, but each "pixel" does not exclusively collect "red", "green", or "blue" light. Each filter lets through a wide range of frequencies with a peak at a particular "color". There is a lot of overlap of what gets through each color filter, particularly between the "green" and "red" filters. All three R, G, and B values are interpolated. "Red" filters in a typical Bayer mask are centered at about 590 nm, which is more yellow-orange than red. The Red channel in RGB is at about 640nm. The Bayer mask filters are not centered on the G and B frequencies used in RGB, either.
The R, G, and B values for each pixel must all be interpolated from the raw values of the sensels covered with "R", "G", and "B" filters because "R" ≠ R, "G" ≠ G, and "B" ≠ B.
Each of the filters in a Bayer mask allow a wide range of wavelengths through. They are attenuated for a peak transmission at about 455nm ("Blue"), 540nm (Green), and 590-600nm ("Red"). There is also a lot of overlap between what gets through each filter compared to the others. Our RGB color reproduction systems use values of around 480nm (Blue), 525nm (Green), and 640nm (Red) for the three primary colors. Some screens also include Yellow subpixels emitting at about 580nm. As you can see, the peaks of the detectors used in our cameras do not match the colors used in our output devices.
For more, please see:Why are Red, Green, and Blue the primary colors of light?
The result of demosaicing/interpolation of a 24 MP raw file is normally a 24MP image with 24,000,000 RGB pixels, not an image with 12,000,000 G, 6,000,000 R, and 6,000,000 B pixels. It's also usually in a 3:2 aspect ratio (6000 x 4000 pixels), not a 16:9 aspect ratio.