I recently signed up for xbox updates beta and then I decided to unenroll and now I've just...

If you are enrolled in the beta, you have likely been “updated” to the beta. Betas do not have access to Realms.

If you wish to unenroll from the beta and reinstall the normal version you can do so via the Xbox Insider Hub.

1. Xbox Insider Hub → Insider Content → Minecraft → Manage → Unenroll
2. Uninstall Minecraft
3. Wait for the system to process the unenrollment (approx. 20 minutes, up to several hours)
   
4. Download & reinstall Minecraft

If the beta continues to download after unenrolling, you may need to allow additional time for the system to process the unenrollment. You may also
power cycle the console before attempting to reinstall the game.

I was recently automatically enrolled in the minecraft bedrock edition beta. I did not even know of the xbox insider app before this and now cannot leave the beta. I already unenrolled on the insider app and it said I was successfully unenrolled.
I uninstalled and reinstalled minecraft and waited over an hour between. With no luck I am still in beta. I then tried to remove it manually in the powershell based on instructions from xbox and that still didn't work. I don't want to be on beta because I
cannot play with friends who are on ps4 and can't get the beta. I am on PC.

You would opt into the Minecraft Beta via the Xbox Insiders App. Unenroll your device, via the Xbox Insiders App, from that beta test and it will START the process to remove you from the beta. This can take sometime and might require the updates to cycle
through the next release, catching the full release up to the beta versioning before you are fully unenrolled and able to access the full release again.

Now is the time for you to unenroll from the preview programme KIRu8 if you feel you are getting too many updates.

The programme is obviously not for you.

Just use the preview dashboard app to unenroll and after the March update goes public you'll be back to one update a month.

The preview for March is very near a public release, that's why I suggested you maybe should decide now.

You're not alone in not realising there are many frequent daily updates in the preview programme.

If you are signed up for the Insiders Program for the beta builds, you can unenroll from the program and prevent other issues coming up for you.