We do have party affiliation. It’s automatic by voting in a party primary and expires at the end of the calendar year. It’s only there so that you can’t vote in a primary runoff unless you voted in the original primary.
Your own link even says “Voters do not officially register with a political party.”
Funner fact, Texas doesn’t have party affiliation on voter registration!
https://www.votetexas.gov/register-to-vote/voter-registration-certificate.html
https://www.sos.state.tx.us/elections/laws/advisory2020-05.shtml
We do have party affiliation. It’s automatic by voting in a party primary and expires at the end of the calendar year. It’s only there so that you can’t vote in a primary runoff unless you voted in the original primary.
Your own link even says “Voters do not officially register with a political party.”
So where are they getting these numbers?