The argument is going to boil down to the “pipeline” problem, ‘there’s not enough to begin with for it to be represented in proportion’, which leads to the moral hazard dilemma of do we just started filling quotas.
Edited
As long as tech workers think that some races have 'cultural' problems and as long as some tech workings think that there are differences between men's and women's brains that make women less suited for tech work, I think we have to stop dismissing this as a pipeline problem.
The prejudice is real and all over this thread posters are happily justifying it.
If so, that only supports allegations of racism and sexism in the tech industry.
Not even slightly.
> do you believe that the lack of minorities and women in tech is justified
There isn't a lack of "minorities" - there are more than population baseline of East Asians, Jews, Indians, etc. There are a lower-than-population-baseline number of South Americans (which I am, by the way), black people, etc.
"Justified" is a moral judgement, not a factual or predictive one. You can believe whatever you want is or isn't justified independently of reality. However, the current distribution of ethnic groups and sexes in tech (and most other industries) is expected and predictable based on the distribution of correlated factors within those industries, without having to appeal to racism or unfair discrimination.