Blockchain, block size and interledger (was: How do bank payments actually work?)

As suggested, I am starting a new thread for this topic.
I apologize if I am coming over as verbose and/or cluttering your inboxes.

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What do people here think about the potentially incumbent collapse of
bitcoin as a crypto-currency itself and the block-size issue?

The question is related to the blockchain itself, not bitcoin.
Block size is ultimately a "political" decision of the community, and there
appears to be a scism because of that.
Not wanting to discuss that in itself (it's probably being discussed
elsewhere),

but what do you guys think this means for blockchain technology itself?

Will we see a proliferation of different blockchains, making ILP even more
interesting and important?

Could this be a blow to blockchain technology itself (unlikely IMHO),
because limitations of this technology are becoming apparent?

What developments do you foresee happening in this field, also maybe not
underestimating a potential collapse of the global economy this year?

On a side note, I like Ethereum's basic tenets but I am worried about a
lock-in of some sorts...