What does Google Trends tell you people are shopping for? I would say you’re not having much success due to not understanding buyer intent. People aren’t necessarily searching for ‘baby yoda’ on Google to buy products, but if you put it in their face via Facebook or social ads, people are more likely to go ‘oh cool, I didn’t know this existed, I’ll check it out and potentially buy’. Without knowing the full story, you’d be much better going down that avenue than waiting for passive searches which is the trap I feel you’re currently in.