People used to crank cars by hand. Look at it backwards. Try driving your car with the starter motor. It won't work because the starter motor won't produce enough power.
Getting a car moving with a clutch is exponentially more stressful on components than using the inertia of the vehicles motion to spin the engine over at a few hundred RPM.
It would take literally hundreds of PROPERLY EXECTUED Bump starts to equal one launch to 60 MPH. Moving 3000 pounds instead of rotating 40 or somwhere near that.
The wear is on the shift and clutch actuating mechanisms that have a very long service life. Will you ever replace a clutch due to bump starting?
That depends on how good you are at it and the best are hard to even feel by a passneger.
regards
Mech
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