BitcoinCash can be invested but not the best because it is forever a shadow of Bitcoin and uses only payment.
Bitcoin cash is very dependent to bitcoin on the price chart , it follows bitcoin so if you think that way I would say bitcoin is a better idea than Bitcoin cash , it has a bigger volume , more acceptance and you can cash it easier and in many different ways, now there are bitcoin ATM everywhere , some of them cash BCH too of course .
so bitcoin cash price depend on bitcoin price, if its true i am sure its not good portofolio for us. how could coins price depend on other coins in crypto market. it should be independence and able to create its own price with MVP .
Not just a dependency but also support from miners. Bitcoin's hash rate is currently the highest among mined coins. Bitcoin has always been more dominant and decentralized. The future of miners depends on the hash rate, if the hash rate is low it could be 51% attacked. Looking at ETC we see what the future looks like, being 51% attacked frequently is a way of killing the value of crypto.