With all that BNBchain offers, I really don't see the need for newer networks chains

While this may sound rather boastful, I really do not see the need for anyone to think of adding to the existing number of network chains already available.

Although I'm no techie of any sort, and I'm open to some good tutoring, on the very surface I really don't see much of a difference in the propositions of these PoS networks.

What do I mean? They all seem to be about the same or similar offerings. Do a comparison of tron, BNBchain, Ripple, Avalanche and even some of the very new ones like Zetrix and Proton chain(I'm sure there are several other novel ones,)... they all seem to offer Scalability, low gas fees, community support, decentralization etc

So here I am wondering how they differ and why we keep having new chains launched since they all seem to offer same stuff.