The statement bitcoin is destroyed is not at all true and not gonna come true in the future. Most could have known in this seven years time how many interruptions were faced to reach this growth. So if its a failed one already it could have happened.
Don't ever believe this kind of false reports because they just want to destroy the reputation of bitcoin now which is now being good and they just want to interrupt people's mind for them to be able people stop the use of bitcoin.
Even I don't think anything bad will happen to the Bitcoin network. Most of them have invested so much capital in these ventures that they would be absolutely insane to be messing with any 51% attacks when their entire livelihood is dependent on the Bitcoin price. their risk is going bankrupt 100% when everyone bails out of the Bitcoin market and the price crashes to the ground.
Yes, only people that wants to destroy bitcoin will make such things and efforts and say that bitcoin is being destroyed. Maybe they are just referring
to the most miners for being Chinese but I don't think it won't make the destruction of bitcoin even if most miners are Chinese.
Still bitcoin will always be good and on it's way flying to the moon.