If Texas flips this year, Democrats will be safe or competitive in the 15 largest states in terms of electoral votes, while the GOP will be safe in none and competitive in only arguably 8. The largest safe GOP state will be Tennessee, with all 11 electoral votes. Maybe I'm getting ahead of myself, but we seem to be witnessing the death of a party.
The GOP will need to do a lot of soul-searching after the election if Texas actually goes blue. In 2022, I think they'll try to be a lot more aggressive in promoting less Trumpy candidates for everything from dog catcher to Senate.