Top-20 coins in coinmarketcap, but some coins is very bad decision to invest. For example I hate ripple because it's a centralized coin and except for popularity , coin doesn't have future. In one moment this coin can become a scam .
I also hate it like you, And most people hate it. But maybe it will not scam and will grow strongly in the future. Because it will always be pumped.
The price of bitcoin always dropped due to xrp pumped. Whenever xrp pumped bitcoin price crashed after few days. The team of xrp control supply and dumped after pumping and convert in to btc than dump btc in to usd.
No one should invest in xrp.