A politician is not somehow better or worse based solely on their ethnicity, gender/gender identity, handicap, race and/or sexual orientation which is an insignificant detail.
You acknowledge the ideology that a politician should be elected solely because of their ethnicity, gender/gender identity, handicap, race and/or sexual orientation is racist and sexist among other things right.
Out of all the politicians in The United States of America what is the percentage of their individual ethnicity, gender/gender identity, handicap, race and/or sexual orientation and their individual platforms?
Perhaps if you took off the blinders you'd realize the congress and senate percentages for PoC, women and non-straights you provided all equal out to 67.8% which is more then half of a total 90.9% by the statistics you presented.