How would you go about measuring differences in racial attitudes as a result of defaulting branch names to 'main' from 'master'? I think the data empirically sh

How would you go about measuring differences in racial attitudes as a result of defaulting branch names to 'main' from 'master'? I think the data empirically shows a majority don't agree with the change, but it doesn't prove its efficacy, which is the best measure of 'if it matters'. In other words, just because 70% of people believe it is an ineffective change, doesn't make it actually ineffective.