Herb Foust

I have a question for you guys. I have a 2022 GMC Sierra Denali. I pull a boat quite a bit and my friends are accidentally hitting the tailgait drop button below the air conditioner controls. I have been very lucky so far and I have not damaged the gate but I will do big damage if this continues. Is there a way to lock the gate or lock the tailgate drop button out?? I got inside truck and lock all doors and gate continues to drop when hitting drop button. Any suggestions? Thanks