this is a poor appreciation of what's discussed here, and also a very biased and unfortunate way of putting it
nobody is asking valve to market their games for them, they're principally asking valve to stop being stupid and screwing them over
devs are in a business relationship with valve and are very much within their rights to negotiate/demand better conditions if they feel they're being treated unfairly. in this modern youtube world i'd say indie devs specially (and specially smaller indie devs) are in almost a worker-employer position with valve, but this is a discussion for another day
Valve needs to be more open about what they do, true.
in any case, asking indie devs to "run brain damaging commercials on tv 24/7" when clearly valve fucked up (and not even to devs, this event was a disaster for everyone) is dumb and you should stop looking at things that way. Gamers are so bent on stanning for steam over this epic store bullshit that they're starting to develop an adversarial relationship with gamedevs, and specially with struggling gamedevs that are who deserve most support. they're not "shitty games", they just don't have the $$ to run the marketing campaigns you're demanding of them, and they're seeing their livelihood threatened by valve being oblivious to the destructive whims of their own algorithm
Pretty sure Valve is not oblivious to the "destructive whims of their own algorithm", the truth is that there is just so many customer growth and many more games being published and the rope is going to break on one point. There is no way to serve all the struggling gamedevs in the world without damaging other gamedevs, which is the reason why some gamedevs report the algorithm changes kills them while others do not notice anything (or see better numbers). This is nearly a zero sum game and, given the explosion on game supply, it is just not possible to have everything be succesful just for being on a Store (same with Switch nowadays, were the situation is not as rosy as one year ago).
That Steam does not support devs is also annoyingly also taken as a fact when they offer the best discoverability tools on the industry and allow you to easily access and publish your game there, some of the main reasons that has lead to more people being able to publish games. Steam is also continuously improving and listening to devs despite what they think. What indies want is always the same: that they are the ones that are noticed, not caring about the other games, which goes against the other indies.
On the part of "gamers stanning for steam hard", you also avoid to mention how most of the indie community just go on a daily "fuck customers, who cares about them" whenever they have any issue with us. The adversarial relationship is not only on the side of the people buying the game, as much as both the media and the devs want to blame it on us.
I do feel bad for indie developers, but we had reached a point were the customer and the developer media bubble (who they talk with and who they trust) has been separated for a while, creating a bigger distance into what the dev and customer goals are, and it is hard for some people to care for other people that only think of them as a walking wallet.