How can I eliminate political text messages when “STOP” doesn’t help?

How can I eliminate political text messages when “STOP” & “Delete & Report Junk” doesn’t help? I donated one time to Matt Gaetz & thereafter started receiving 40 to 75 political donation request text messages a day.

I can filter them into the “unknown senders” box, but I still have to weed thru them to make sure it’s not from someone I need to respond to. SUPER ANNOYING!!!! I will NEVER contribute to any political group again. Never say Never doesn’t apply here!