I don't think so. TikTok is vastly more addictive and fresh in its content. How much content can your circle creating in a day? No more than 20 posts I would say? If facebook stays being facebook, they will die anyway.
Problem in facebook right now, there isn't enough people to interact with, it is a social network, but tiktok is not. Tiktok is the new TV, with endless contents. I follow zero people there, but still I using it the right way.