The point most relevant to gay bars in Thailand is that the customers are advancing in age and there are few younger men interested in taking their place.]
There are heaps of younger men taking their place. Thousands, in fact. The only difference is, they are all Chinese. They are keeping the soi Twilight bars afloat. Should they ever stop coming to Thailand, then yes, I also think the gogo bars are doomed. As it is, they appear to be surviving on drink sales alone, as offs seem few and far between.