i don't know what on earth would trigger the bullrun in the alts. i think we have seen enough of this bloodbath there is about 8 month left in the bitcoin next block halving and still market condition is not improving. is there will be any improvement in the alts or they all will die
While I understand your desperation about the lack of response of most altcoins, at the same time a question comes to my mind, why are you still looking for a bull run to happen in the altcoin market when during the previous months we already had a great recovery by bitcoin? You need to invest in whatever is giving good profits and so far altcoins do not fit that definition, only get back to the market of altcoins when it is clear that the recovery you were waiting for is happening.