We need more pleb miners's solo blocks and less rented hashrate, but give the current network difficulty, it won't be soon 
Not going to happen!
It's not the difficulty, it's manufacturers that are killing solo miners.
Bitmain's most efficient miner the s21hydro is at 5360W, the S21 is at 3500W, T21 3610W
Microbt M60 runs at 3404W, M63 goes to 6626W and the M63S is going for 7215W
Once your miner goes above what a 16/220 can go for it's no longer a pleb miner's toy.
Can't wait for them to go above 8800W, with +/- 10% no common house would be able to run that thing.