Why have we not had a 3rd tiktoker to surpass khaby or Charlie

The last time a tiktoker reached those heights was khaby he surpassed Charlie.But why have we not had that next big thing or will it never happen again.especially since both Charlie and khaby have fallen off neither are mainstream anymore.i genuinely don’t think ive seen the next big TikToker pre khaby i feel like it would be interesting to get a third person in the mix shake things up.or charlie just passes khaby cause I find him lame