In a new Pew poll, 41% of Dems say it bothers them that their nominee will be a white male in his 70s and 59% say it doesn't. By race:
White
Bothers 49%
Doesn't bother 51%
Black
Bothers 28%
Doesn't bother 72%
Hispanic
Bothers 30%
Doesn't bother 70% https://www.pewresearch.org/fact-tank/2020/04/20/some-democrats-are-bothered-nominee-is-an-older-white-man-and-they-solidly-back-biden-in-november/
White
Bothers 49%
Doesn't bother 51%
Black
Bothers 28%
Doesn't bother 72%
Hispanic
Bothers 30%
Doesn't bother 70% https://www.pewresearch.org/fact-tank/2020/04/20/some-democrats-are-bothered-nominee-is-an-older-white-man-and-they-solidly-back-biden-in-november/
Supporters of Dem candidates bothered that nominee will be white male in his 70s:
Biden supporters
Bothers 21%
Doesn't bother 79%
Sanders
Bothers 42%
Doesn't bother 58%
Buttigieg
Bothers 57%
Doesn't bother 43%
Warren
Bothers 73%
Doesn't bother 26%
Biden supporters
Bothers 21%
Doesn't bother 79%
Sanders
Bothers 42%
Doesn't bother 58%
Buttigieg
Bothers 57%
Doesn't bother 43%
Warren
Bothers 73%
Doesn't bother 26%