If SegWit is added to the legacy chain, Bitcoin Cash will be far closer to the original "Bitcoin" as laid out in the white paper. It's hardly misleading since the two issue from the same genesis block, share a transaction history, and since Bitcoin Cash changes almost no functional parameters while maintaining the project's original principles.
Neither of your sentences are a representation of the truth. Are you a supporter of this scam project BCH? Claims that the project will lose network decentralization because of growing block chain demands that will definitely outstrip both technological progress and the increase in project support resulting from greater use, adoption and market cap is just speculation.
No. Research and common sense.Also, removing the self-imposed and unnecessary 1 MB (or ~1.7 MB in the case of SegWit) transaction limitation does not preclude second-layer scaling nor technological improvements like sharding.
If it is unnecessary, why not make the maximum block size 1 GB? 
Lastly, it was always the original plan to remove the temporary block size limit.
Which has no relevance to anything today.Tl;dr: Bitcoin Cash is a scam.