i agree with you that bitcoin's extreme conservatism introduces serious problems and existential risk. the block subsidy issue is a very really problem and absolutely could lead to it's downfall. there is a tradeoff being made here. bitcoin has a lot of technical debt, not only when it comes to code, but also when it comes to design. the extreme conservatism that bitcoin has offers a lot of upside when it comes to reliability and certainty, but it also introduces serious risk when it comes to it's ability to react to design flaws. this is why anyone who is all in on bitcoin is incredibly foolish. we have no idea no idea what will win in the end and ideologically tying yourself to any project is incredibly foolish. people should be agnostic. they should be willing to exist in multiple communities at once and understand the tradeoffs that each community is making and be able to dynamically adjust your perspectives as time goes on.

as for bch being too conservative I absolutely 100 percent agree with you. i might even go further than you would. i think that bch playing into the conservative meme is a really bad idea. they are keeping like 75 percent of the burden that being conservative carries while yielding basically none of the benefit. they should be more like ethereum and be willing to make changes to make things better as they see fit. they should kill their sacred cows and move into their own brand and their own identity. if they think that 10 minute blocks are suboptimal, they should be willing to change them. if they things that the halving block subsidy is an existential risk they should be willing to change it. i think that would lead to them actually being an interesting and successful project.