Drive slower over bumps.

Simples.

Only one road car i've owned was sleeping policeman and pot hole proof, and that was the P6 Rovers, fitted with slightly modified DeDion Tube rear suspension, which invariably didn't work because the bellows split and allowed the fluid out, i fixed them and the difference that extra damping made was huge.

Coupled with the front suspension of a full pivot design, with the springs mounted horizontally braced against the tank like bulkhead made for a very strong shell, and the suspension able to soak up anything the road could throw at it, course they were on tyres in those days not elastic bands.

www.britishv8.org/Articles/Rover-P6-Design.htm

My Landcruiser and Hilux laughed at the speed humps and pot holes, but for different reasons.

My MB indy echoes what the OP says about general suspension wear on modern cars.