I get what you're saying but my point is that social media posts that generate poor watch time are part of the reason why the YT algorithm isn't giving you much traffic
I have no data to suggest that social media posts generate more poor watch time than traffic from other sources.
My brand has a YT account, accounts on FB, Twitter, Instagram AND a website where I share my videos. If I do a search for my videos on google, I almost always see a link to my videos on YT as the first result. Sometimes I see a link to my videos on FB, Twitter and on my website. That means a search can sometimes yield 3 or more links to my videos within my ecosystem on the very first page of google search results. That's the beauty of an ecosystem for my brand - google's algorithm can see that I have a strong presence online and on social media, and rank my videos accordingly in the search results.
I have no fantasies about my ecosystem becoming successful quickly. Subscribers on my website, YT and social media accounts are growing slowly but surely. For myself, this is just a waiting game, and I give myself at least 3 - 5 years before making any significant returns.
3 - 5 years from now, I will look back and what I will be most proud about is not that I persisted in making videos for all that time, but that I hustled on social media for all that time.
Anyone serious about their brand will set up an ecosystem where all the parts work harmoniously together to achieve a a desired outcome.
EDIT: And as someone here has said, Instagram is not good at sending people to YT videos, because Instagram only allows a single link in the bio. So I put the link to my website in my Insta account. My website, FB and Twtr accounts all have links which point to my videos on YT. And in the description of my hundreds of YT videos are links to my website. Hundreds of links to my website, hundreds of links to my YT videos, keeping people 'trapped' within my ecosystem, moving back and forth.
