If you did root your phone, you can turn RCS back on with the standard Magisk hiding procedures
I really do not want to use hacks like that in order to send a text message.
It reminds me of the:
Voting in elections now requires buying a Big Mac and having receipt for verification, I don’t want that.
No problem with that, just ask a friend to buy it for you. Or you can just fake
A messaging standard that requires carrier, phone modem and phone operating system all implementing in order for it to work is outdated mindset from the era of flip-phones. We have Internet now, which allows sending any data to any device and we have installable apps that can send anything through it. Implementing an awful and already outdated standard in a most user freedom unfriendly manner just to replace even more outdated standard is not great.
Imagine if Google now started promoting a FAX 2.0 protocol for fax machines, which would implement some of basic email features already being in email for 20. No, just use email and if your friends do not have it show them how to use it.