I got it! In the text message, with the cursor anywhere, press and hold it for just a second. A bubble will pop up above your finger and then select all will be an option! I don’t know why the powers that be keep “fixing” things that aren’t broken!
The next problem to solve is the mess that ensues when you try to put the cursor somewhere to add or correct or change something in this very message. Sometimes it will highlight a word close to where you touched. Sometimes it will highlight the word with the options to move the highlighted area to include a bigger field. Eventually, if you keep tapping different places the plain old cursor will show up. At that point, I use the spacebar to move it to where I want to go. Very inefficient and annoying. (Or I could be doing it incorrectly. If so, please let me know how to do it properly.) 😉