Well, it makes an interesting thread, now here's the real story:
Mahogany is a generic term. There are many 'true' members of the mahogany family, and a few that are called 'mahogany' that are not.
Many tropical species, including the mahoganies, have been harvested (plundered might be a better word) since the days of the sailing ships when baulks were used as ballast for the returning merchant fleets.
Cuban Mahogany had been exhausted by the time my father was born (he would have been 100 this year, were he still with us). Brazilian mahogany dropped out of the mainstream within my working life, along with other so-called 'philipine mahoganies' such as luan and marjau (shoreas, not true mahoganies)
There are still plenty of true mahoganies available in the timber yards. Sapele mahogany (red/brown) and idigbo (yello/brown) are both still easily found. However, I suspect that the red mahogany doors that started this string were stripey sapele veneered flush doors. Popular in the 1960s but right out of fashion for years. At least veneers are an economical use of a precious resource.