technical question for bikers

[Skybird]

In early Spring I got myself a new bike. Amongst some minor other things (lights, saddle) I exchanged the tires for fail-safe tyres by Schwalbe, these have a operation pressure range of 3.5 - 6.0 bar. Adjusting the air pressure for my weight and the luggage I sometimes transport, I operate the wheels at 4.5 - 5.0 bar.

The inner tubes have Presta/Sclaverand/French valves. And since Spring, today I ruined the third such valve/tube while pumping the tire up and removing the cap of the pump. That cap of the pump'S hose is lined with a robber coating inside.

Three breakdowns in 8 months due to failing valves when removing the pump (I tried three different ones now, all suited for Presta valves, they say). To say I'm pissed would be a mild description. More fun, these damn hypersensible things cannot just be replaced like Dunlop valves (taking the old valve out, putting the new one in, pumping up the tire and that'S it: one minute's job if you work slowly) - no, Presta is integrated into the tube: you always have to replace the complete inner tube, taking out the wheel and the wires and the chain for that. Merde.

Before, on my old bikes, I always had Dunlop/Woods valves (on a side note: it is also called English valve while in Germany it is called German valve or Blitz-Ventil). Not a single of these ever failed me in the past 30 years. The tubes may got punctured, but the valves I never needed ro replace. they worked for a decade without ever causing troubles.

why are these Presta valves even sold on regular touring bikes today? What makes them so special that they have taken over even on bikes where you do not use to run narrow-sized high-pressured racing wheels at 11 or 12 bar? with air pressure around 4.5-5.0 bar, is it recommended to go back to an inner tube using Presta valves, and kick these damn Presta valves into the bin? what speaks against it? I mean there must be a reason why these Presta things now dominate the market. Is it just marketing? Three beakdowns in 8 months does not speak for the robustness and quality of these Presta valves. And I cannot remove the pumps from the valve any other way then putting them off, right? Or is there a trick or a hidden magical spell I need to use?