In the recent months, race and ethnicity have rightfully been called further into question. To this extent I think we should provide a "Refuse to Answer", or a "Chose not to Answer" option in the 2021 census.
You may be interested in these active petitions
Ta-Nehisi Coates once said, "But Race is the child of Racism, not the father".
I feel the government should do this as they have stated that they are dedicated to combating racism. Race itself is not backed up by solid science, it is a purely societal construct to put humans into categories.
Race was created to support racism. As opponents to racism, we can start dismantling race, by first providing the option not to label each other in these ways.