At the end of the day, protocol improvements (even if you think they are improvements) are not as important as market share. In the real world, the only crypto that matters is bitcoin (BTC) and possible Ethereum. Any interactions wit the world of crypto go through bitcoin and any merchants that accept crypto tend to only accept bitcoin! That will not change on 1 Aug.
I expect a mass dump on 1 Aug as anyone who manages to get their hand son it, sells for either bitcoin or other alts. It may limp on for 6 months or so afterwards but I'm not even convinced of that.
I understand that even the developers of BCC are not sure about it. It was designed to force the block increase in Segwit 2x and if that is achieved, it may well die at that stage!
Time will tell, but I'm not convinced this is the second coming that some are selling it as!
Yes, I think Bitcoin Cash will stay until blocksize is increased to 2mb. So wiser to hold till then