So make them useless on lane and then huge meat shield for enemy adc
No they would just be a meatshield for everyone.
They disrupt enemy movements and open up possibilites for the backline to dish out damage.
Thats what tanks do in almost every game.
Having said that, yes they should have a shit laning phase. Why the fuck should they have a strong laning phase and be the best teamfighting class there is?
A Darius is worse at teamfighting than a Malphite, so naturally he should have the better laning phase but as it stands, Malphite actually holds his ground pretty well against him (which is total bullshit).
And let bruisers be mobile, have cc, damage, lane domination and tankyness?
Most bruisers are designed to win the laning phase and carry that lead into teamfights or applying pressure through splitpushing. So yes, they should dominate the laning phase but they sacrifice scaling in return.
Also I don't know what bruisers you are thinking about but most of them are immobile as fuck.
Plus their cc is locked behind skillshots or other conditions.
Tanks have reliable point and click cc or pretty much unmissable cc (and they generally have more cc than bruisers, again I have no idea what bruisers you have in mind here).
Tanks are scaling godly, them having near a good laning phase is one of the problems in top right now.
Imagine a GP just brawling with Darius lvl 3 and coming ahead of the trade plus having the scaling GP has.
Does that sound bullshit? Because thats what tanks do.