I agree with your mission statement.

It's important to match the demographics of the population with the demographics of trial users. It's important to prevent as many deaths as we can.

It's important to account for differences between groups when you're developing healthcare.

But please, don't mangle mathematical terms.

>When you're main concern is "What is a minority" rather than "minorities are dying" that is very indicative of the problem still existing

You have just demonstrated what is called "attribution of intention" (as in you attributed an intention to the other person), which is a good indicator of a conversation going south.

(More general bias is "attribution bias")

HN guideline:

>Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith.