From the actual CBP website https://help.cbp.gov/s/article/Article-3618?language=en_US
Land or Sea Travel: U.S. citizens entering the United States by land or sea are required to present a valid WHTI-compliant document, which include:
- U.S. Passports
- U.S. Passport Cards
- Enhanced Driver's Licenses
- Enhanced Tribal Card (ETC)
- Trusted Traveler Cards (Global Entry*, NEXUS, SENTRI, or FAST
- Military Identification Cards (for members of the U.S. armed official maritime business)
* The Global Entry (GE) card is only an ENTRY document and may not be used to enter Canada, Mexico or Adjacent Island.
It does say that U.S. citizen children ages 15 and under can enter back into the U.S. with their naturalization certificate but not anywhere does it say that adults can.
Personally, I wouldn't risk it but to each their own. Be prepared for a very hard time with CBP. They don't play around lol. Good luck whatever you decide to do!