In order to accomplish most of those things, the Texas GOP would either need to be removed from power (lose elections) or get to the point where it becomes obvious to them that they will lose elections if they don't change their polices.
In order for that to happen, the Texas voting population is going to need to shift from voting for the GOP to the Democrats.
In order for that to happen, we probably need a mix of a) curtailment or regulation of misinformation and disinformation, b) increase in education funding, c) reform the education system to address critical thinking and propaganda susceptibility and instill basic moral values (citizenship, compassion, lying is bad, breaking the law is bad, adults acting like children is bad, adults insulting others is bad, etc.), d) mobilization of progressive donors, e) reform the Dem's party apparatus to increase effectiveness, f) increase voter turnout (remove barriers and increase motivation)... there are probably several other things but those are at the top of mind.
It sucks but elections have consequences and the Texas population and their voting habits are very flawed.