You're probably/possibly right. BUT .... your French pro friend is no different to that office gossip where a woman gets promoted and everyone says she only got the job cos she slept with the boss. Maybe she'd did, but maybe she's just damn capable. But as an outsider the 'good authority ' says what it says.
I'll stick my neck out and say I'm happy to bury my head in the sand and watch the entertainment. Why? Because it affects all sports - tennis, athletics, football, American football, basketball maybe even snooker and darts ??
And then there's the fact even if they're 'clean' in the sense that they'll pass any drug test, they're so far away from what I am and do, it's irrelevant anyway. World's best talent using the best equipment, riding every day, responsibilities pushed aside (no 'proper' job, families left at home), medical treatments I have no access to (doctor on tap, massages, remedies). If I'm being entertained by an alien world, I don't really dwell on how far they've gone
Definitely snooker and darts - except it's beta-blockers there.
I laughingly said to a physio friend who has done work for endurance racing (Le Mans etc) that he must be working in the only clean sport and he said that it's amphetamines instead.