unstoppable popups in chrome and safari

You could have adware. Try Malwarebytes.

Malwarebytes - https://www.malwarebytes.com/pricing/ - There are different versions available depending upon what features you want. For a single removal without ongoing monitoring you can probably use the free version.

More disreputable sites tend to have pop-ups for undesirable software. Avoid those sites. Adblockers don't really help.

Things I use to help those with malware on their Macs. Each case is unique. Yours appears to have gotten to a significant level of chaos, so use & refer as you like. Apple.com has other resources too if these don't suit your needs or you just want to check:

Update software

Clear browser history on Safari, Chrome or any browsers you have

Remove extensions you have in your browsers

Change homepage back to its regular one after via Safari - preferences - general - home page

Install Malwarebytes for Mac

Check Applications. Remove those unknown to you

Check system preferences - extensions - disable those checked within each tab

System preferences - enable firewall

Empty your trash as you delete things

*If you can't install Malwarebytes in regular nor safe mode, Komros is an excellent program via the App store that will clean things up right away. It's the only one I use besides Malwarebytes. It's clean, non-invasive, & if you want to uninstall later, it's super easy.

Here are some of the articles I reference. Again, it depends on your situation:

https://support.apple.com/en-us/HT204098

https://support.apple.com/guide/safari/if-youre-asked-to-trust-or-update-a-plug- in-sfri43593/mac

https://support.apple.com/kb/PH25087?viewlocale=en_US&locale=en_US

https://support.apple.com/en-us/HT203987

Good luck....it is possible to remove : )

Turn on your pop-up blocker and install an adblocker. Welcome to the Internet. 😁😁