Great choice with Lashana Lynch, better than Idris Elba, excellent realistic choice for an agent
Idris wants to be a hard action hero like what he's doing in Hobbs & Shaw, OR alternatively, politically active material. Bond might be a bit boring for Idris, and too limiting for him, as he is a producer.
In terms of "white male Bond," consider this simple series of questions:
1. How old is Bond? Impossible to answer. He was middle aged in the 60's and still is. Other characters are unchanged when possible, like M and Q. What color is Bond's hair? Etc.
2. Is Bond even a single person or is the name "James Bond" itself a code name? 007 is not a code name, FYI, that's his spy designation and RANK.
Whether James Bond is a real name or a code name is actually up for debate and subject to change or defining or redefining, as far as I know.
3. Has anyone here ever met actual high-level intelligence agents? If so, you'd know they are NOT all white males. Diversity IS ABSOLUTELY POSITIVELY A BENEFIT TO SPIES AND INTELLIGENCE OFFICERS.... Because then they can blend in anywhere based on which agent is assigned to a mission.
Congratulations to the Bond team, I think the franchise may be again reinvigorated by this. THE REASON Bond is still around is because the people running it know WTF they're doing.