for the TX Dems...I'm with you...have someone from WaPo or the NYT ask them if they were all fully vaccinated prior to 'leaving on a jet plane' (love that song)...everyone should follow the CDC guidelines.
WRT the Delta Variant, I haven't heard anything about 'How much more' transmissible it is and if the efficacy of the vaccines has changed at all...i.e. breaking through more easily....I'll be seeing our ID/ICU Docs this weekend and ask them what they've seen/heard and get back to you (all). Right now, I agree with you that 5 cases out of 50 or so is unexpected, so you're right to question it, but it's a little early to form conclusions.
All the numbers you're posting about the vaccines are for the "Wild Type" and not the Delta Variant...I suspect, from all the comments being bandied about, that there are differences...again, I'll share what I hear from folks who are truly 'on the front lines'.
49% vaccination doesn't cut it...even when including COVID survivors (~34M), we are only at the 59% level...not 70-80% as needed (pre-Delta variant)...In the health interests of the ~170M unvaccinated Americans, we just might see more restrictions moving forward...just my opinion.
Let's keep our eyes on the goal...get "everyone" vaccinated...write letters to ALL congressmen/women go public in no uncertain terms advocating for shots...and....use Social Media to beg Trump to join in...biggest difference maker IMO. The TX Dems are a 'non-issue' in the larger scheme of things.